Daniel A. Sheridan

~ Press Reviews ~

Company Glance Magazine

Tim Book

 

In This Article, You’ll Discover:

  • The true story of a young boy in an 1850s photo studio.
  • The highly dangerous chemicals used in early darkrooms.
  • Hidden facts about child labor in New York.
  • A fierce media battle with showman P.T. Barnum.
  • How early photo methods changed everyday life.

 

Tim Book

Have you ever thought about the first time someone took a picture? Long before smartphones and digital cameras, taking a photo was a rare kind of magic. Author Daniel A. Sheridan takes us back to those early days in his new novelTim: The Story of Timothy H. O’Sullivan as a Young Apprentice at Mathew Brady’s Studio.

A Spark In The Darkroom

Daniel knows a lot about the magic of making pictures. He grew up developing black and white film with his dad in their basement. He remembers carefully mixing chemical potions from yellow bags beneath the eerie glow of a red safe light. This incredible hands-on experience made him the perfect person to write about the birth of American photography.

“In the darkroom, after focusing the negative, my Dad lifted the lid to the lead-lined box to pull out a glossy sheet of photographic paper. … I watched the white glossy paper magically transform before my eyes in the ripple of developer waves into a photograph.”

The Danger Of The Dark Art

Back then, making a picture felt a lot like magic. The term Dark Art originally comes from ancient alchemy. Long ago, alchemists tried to use magic to turn ordinary metal into gold. Over time, these early dreamers became our modern chemists. They discovered the exact chemicals needed to develop a photograph and lock it in place with a fixer.

However, practicing this Dark Art was incredibly dangerous work. Early photographers used harsh substances to make images appear on metal plates. Workers had to deal with toxic mercury vapors just to create a single photo. Daniel uses his background to show the brave people who risked their health for this new technology.

“You see Tiny Tim, Mr. Lawrence has fallen victim to the mercury vapors from his endless hours toiling away in close proximity to the fuming hood. He suffers from the most acute pain and is unable to walk. His legs and arms have swollen to twice their ordinary size.”

Uncovering Hidden History

Most people know Timothy H. O’Sullivan for his famous, haunting photos of the Civil War. Many historians think he started his photo career at age 18. But Daniel dug deep into his historical research and found clues that point to a much younger start. While it is hard for a modern audience to imagine, child labor was very common back then.

“In a letter of recommendation, Brady states that he had known Tim ‘from boyhood’ which indicates a younger age than 18 or 16. He did not say young man or youth, he said ‘boyhood.’ In addition to this, I note that Brady’s own nephew, Levin Handy, began work at his uncle’s studio at the age of 12 in 1865.”

A Gift For Everyday People

Photography completely changed the world. Before the camera, only wealthy royalty could afford to have their portraits painted.

“In the days before photography, only a prince or a priest could afford to have their portrait painted. Now all of us can have a likeness of ourselves, of our mother and father, of our children and grandchildren.”

Showmen And The Media Battle

The book also shows a fun rivalry that feels very modern. Mathew Brady was a highly respected photographer who treated his work as high art. Directly across from his gallery stood P.T. Barnum’s famous American Museum. This was a place filled with oddities, hoaxes, and loud spectacles designed to draw a crowd.

When Barnum refuses to let Brady photograph the famous singer Jenny Lind, a fierce competition begins. This was an early battle for media attention. Barnum completely understood the hungry appetite of the press and knew exactly how to feed the beast. He planted fake stories and used massive street posters to manipulate the news so people would buy tickets to his shows.

It is fascinating to see how people fought over celebrities and news coverage in 1850. It reminds us heavily of how the internet and digital media work today. Even back then, knowing how to capture a crowd’s attention was just as important as the technology itself.

A Window Into Early Tech

By focusing on Tim’s childhood, the book gives us a fresh look at a famous historical figure. It explores the fascinating technical jump from early daguerreotypes to more advanced photo methods through the eager, observant eyes of a child.

This dedication to the craft highlights the unseen sacrifices behind early portraiture. Because of these early pioneers, regular citizens could finally keep visual memories of their families.

If you love history, compelling rivalries, or reading about the wild days of early tech, this story is a must-read. You can secure your copy of Tim: The Story of Timothy H. O’Sullivan today and step right into the bustling, brilliant streets of 1850s New York. ❏

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Rich Man Magazine

Tim Book

Tim: The Story of Timothy H. O'Sullivan as a Young Apprentice at Mathew Brady's Studio

Set in 1850s New York, Tim fictionalises the early life of Civil War photographer Timothy H. O'Sullivan as a 10-year-old apprentice at Mathew Brady's daguerreotype studio on Broadway, opposite P.T. Barnum's American Museum. Written by a former photojournalist and darkroom technician, the novel blends historical detail with the daily craft of early American photography.

Daniel A. Sheridan's debut novel Tim follows 10-year-old Timothy H. O'Sullivan from Staten Island to Mathew Brady's daguerreotype studio on Broadway. O'Sullivan would go on to produce some of the most reproduced battlefield images in American history, including A Harvest of Death at Gettysburg. But his early years are almost entirely undocumented. No diaries, no letters, no first-hand accounts from his childhood survive. Sheridan, a former photojournalist and darkroom technician, fills that gap with a debut novel grounded in genuine photographic expertise.

Brady, Barnum and the Broadway Arms Race

The novel opens on 11 September 1850, the evening Jenny Lind made her American debut at Castle Garden. Young Tim crosses New York harbour by ferry and rides an omnibus up Broadway to Brady's gallery, which sat directly opposite P.T. Barnum's American Museum. Sheridan uses the proximity to frame a contest that defined mid-century Manhattan: Brady pursued photography as portraiture and art, Barnum sold spectacle to the masses, and the public was still deciding what this new medium was actually for.

The historical grounding is precise. Lind's debut, Tim's route from Staten Island and the geography of lower Broadway all map to verifiable records and period maps. This is not a novel that borrows an era's aesthetic and fills in the gaps with atmosphere. Sheridan has done the archival work, and the specificity shows in every scene.

O'Sullivan's Lost Childhood

The biographical record for O'Sullivan before the Civil War is thin. Biographers place his birth in Ireland around 1840, to Jeremiah and Ann O'Sullivan. The family settled on Staten Island at some point during his infancy. Records confirm he worked at Brady's studio as a young man. Beyond those facts, the trail goes cold.

Tim occupies that silence with informed fiction, writing the daily mechanics of a working daguerreotype studio: the polished silver-coated plates, the mercury vapour developing process, exposures timed by instinct rather than meter. These are not decorative passages. Sheridan writes them as someone who has stood in darkrooms, mixed chemicals and processed images by hand. The result reads more like archival reconstruction than invention.

Photography as Narrative, Not Backdrop

This is what distinguishes Tim from other historical fiction set around early American photography. Most novels treat the technical work as set dressing. Sheridan makes it structural: the chemistry creates tension in the plot, the studio's routines shape Tim's character and the gradual evolution from daguerreotype to newer photographic processes runs parallel to the boy's development as an apprentice.

O'Sullivan left Brady's studio to photograph Civil War battlefields independently, producing images that changed how Americans understood armed conflict. He later documented the Western frontier on government survey expeditions, working from a converted ambulance wagon that served as a mobile darkroom. Tim captures the training and instincts that made that career possible, written by an author with the technical credentials to get the details right.

Further Context

What are some facts about Timothy O'Sullivan?

O'Sullivan was born in Ireland around 1840 and emigrated to the United States as a young child. His family settled on Staten Island, New York. He began working in Mathew Brady's photography studio as a teenager, learning the daguerreotype process before the Civil War. During the war, he produced iconic battlefield images for both Brady and Alexander Gardner. He later joined government survey expeditions to the American West, capturing landscapes that remain central to American photographic history.

Who is considered the most famous Civil War photographer?

Mathew Brady is the most widely known figure, though he operated more as a publisher and organiser than a field photographer. His associates (Alexander Gardner, George Barnard and Timothy O'Sullivan) did the majority of on-location work. Brady's contribution was systemic: he built the infrastructure for photographic war documentation, secured access to battlefields and ensured the images reached the public. O'Sullivan's work, particularly at Gettysburg, remains among the most reproduced Civil War imagery.

What camera equipment did Timothy O'Sullivan use?

O'Sullivan worked with large format cameras using glass plate negatives, the standard equipment of the 1860s. These cameras required lengthy exposure times, on-site chemical preparation and careful transport of fragile plates. In the field, he operated from a converted ambulance wagon that functioned as a mobile darkroom. Civil War photography was as much about logistics and chemistry as it was about composition and timing.

ABOUT

Daniel A. Sheridan

AmazonDaniel A. Sheridan is a New York University graduate whose professional career spans photojournalism, darkroom work and editorial roles. His debut novel Tim: The Story of Timothy H. O'Sullivan as a Young Apprentice at Mathew Brady's Studio draws directly on his technical expertise in early photographic processes and his deep knowledge of American photographic history. The novel was released on 20 February 2026 and is available on Amazon.

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AP News

Tim Brings The Early Days Of American Photography To Life Through The Eyes Of Timothy H. O’Sullivan

 

Daniel A. Sheridan’s debut novel reimagines 19th century New York & the formative years of a future Civil War photographer inside Mathew Brady’s famous studio.

NEW YORK CITY, NY, UNITED STATES / AssociatedPress.com / -- In Tim: The Story of Timothy H. O’Sullivan as a Young Apprentice at Mathew Brady’s Studio, author Daniel A. Sheridan transports readers to the bustling streets of New York City in 1850, where art, ambition, and innovation collide. Inspired by the early life of famed Civil War photographer Timothy H. O’Sullivan, the novel blends historical detail with imaginative storytelling to illuminate the birth of American photography.

The story opens on September 11, 1850, the night of Jenny Lind’s celebrated debut at Castle Garden. Ten year old Tim, a boy from Staten Island, is sent to apprentice at the daguerreotype studio of Mathew Brady, one of the most influential photographers of the era. Crossing the harbor by ferry and traveling up Broadway by omnibus, Tim steps into a city alive with spectacle and possibility.

Directly across from Brady’s gallery stands P.T. Barnum’s American Museum, filled with relics, curiosities, and the spirit of showmanship that defined mid nineteenth century entertainment. As Tim explores this vibrant world, readers are introduced not only to the mechanics of early photography but also to the cultural energy that shaped it. The novel captures the tension between art and commerce, innovation and rivalry, as photographers compete for access to the era’s most sought after celebrity, Jenny Lind.

When Barnum refuses Brady permission to photograph the Swedish Nightingale, the challenge becomes both personal and professional. With the keen eye and growing skill of his young apprentice, Brady pursues creative solutions. Through their dynamic relationship, Sheridan skillfully illustrates the technical evolution from daguerreotype to more advanced photographic processes, framing it as a creative battle between competing methods and national influences.

AmazonSheridan brings authenticity to the narrative through his own background in photojournalism and the history of photography. A graduate of New York University with hands on experience as a darkroom technician and editor, he weaves historical research with artistic insight, honoring O’Sullivan’s later achievements while focusing on his formative years.

The book is now available on Amazon— secure your copy here: Amazon.com


Author Media Kit

 

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Goodreads Reviews: ★★★★★

"Sheridan writes about photography the way poets write about love."
~ John Peter, Goodreads Reviewer Tim Book

Regina Kate
There’s something enchanting about reading a book that feels painted rather than written. Tim is that kind of story. Every scene glows with light and shadow, like one of the daguerreotypes Sheridan describes. I could practically see the silver plates reflecting the city’s fog and faces. What stood out most to me was the tenderness with which Sheridan writes about mentorship and creativity. Brady is both genius and tyrant a man obsessed with capturing immortality. And Tim? He’s the perfect lens through which we see the world’s transformation. Beautifully told, meticulously detailed, and full of heart. I’ll be thinking about this one for a long time.

Jeffrey Shawn
I think what Sheridan accomplishes here is beyond storytelling, it’s preservation. He’s taken a largely forgotten figure, Timothy O’Sullivan, and given him a voice, a childhood, and a place in our imagination. The research is clear, but it’s never dry. What you feel instead is reverence for art, for craftsmanship, for those who dared to experiment before there were manuals or safety nets. The friendship-mentorship between Brady and Tim reminded me of relationships in my own life: stern guidance mixed with deep, unspoken respect. Every time Tim learned something new about light or time, I felt that same spark of wonder. By the end, I wasn’t just reading about photography I was seeing how passion and persistence shape who we become. A stunning, soulful work.

Margaret
The writing is so rich that I had to slow down just to savor certain passages. Sheridan’s New York is colorful and alive, equal parts wonder and danger. Absolutely engrossing.

Ava Bradford
Every word feels etched in silver. Sheridan’s writing is that precise, that luminous. Tim is one of those novels that feels slow in the best possible way it makes you linger, observe, notice light on faces and dust in the air. It reminded me why I fell in love with both photography and storytelling in the first place.

Sabine Traeder
What amazed me most about this book is its balance it’s sweeping in historical scope yet intimate in emotion. You see photography being born, but also a young boy learning about responsibility, creativity, and himself. Sheridan manages to make history feel deeply personal. That’s a rare gift.

Frank
Daniel A. Sheridan has crafted something far more ambitious than a simple historical novel. Tim is a genuine reconstruction of a moment in American history that we rarely see explored the messy, experimental, almost mystical birth of photography as an art form. Sheridan’s attention to detail is staggering. Whether he’s describing the texture of a daguerreotype plate or the feel of walking through pre–Civil War New York, every sensory cue feels authentic. But the true strength of the novel lies in Tim himself. His innocence, curiosity, and occasional fear give the book emotional grounding. Through Tim, we witness the awe of capturing an image for the first time an act that feels simultaneously scientific and magical. Sheridan’s portrayal of Mathew Brady adds another layer of depth, offering a portrait of a complicated artist whose genius borders on obsession. A stellar, meticulously researched, emotionally resonant story.

Elijah William
It’s astonishing that this is Sheridan’s first novel. The confidence, the rhythm, the emotional intelligence it feels like the work of someone who’s been writing for decades. Tim isn’t just a debut; it’s an arrival. It’s the kind of story that honors both history and the human heart.

John Peter
Light that’s what this book is really about. How we see it, how we capture it, how it changes us. Sheridan writes about photography the way poets write about love. Each page feels illuminated by admiration for those who first learned to trap light on glass. Absolutely beautiful.

Roselia
This story reminded me why I love creative people — they see the world differently. Sheridan’s writing has that same visionary quality. You can feel his reverence for art, his empathy for Tim, and his fascination with how new technology changes us. It’s rare to find a book that feels both historical and modern in spirit. Tim is about invention, yes, but also about courage, the courage to imagine a world that doesn’t exist yet. Reading this felt like standing in front of an old photograph and realizing the people inside it once breathed, dreamed, and fought for beauty. That’s powerful storytelling.

GoodreadsAlfred
From the first page, it’s clear Sheridan knows what he’s writing about. His background as a photojournalist gives the story incredible depth. I loved how the book showed the clash between old and new ideas daguerreotype versus modern photography through the lens of a young boy’s ambition. Beautifully told.

Click here to read Tim book reviews on GoodReads.com


From The Author ~ The Photographs of Timothy H. O'Sullivan

Tim - Ansel

I first learned about Timothy H. O'Sullivan while studying the history of photography at New York University in the spring of 1989. Professor Silver clicked back and forth in a slide show comparing O’Sullivan’s photograph, Ancient Ruins in the Cañon de Chelle, N.M., taken in 1873 with Ansel Adams’ view taken in 1942.

I became curious about this photographer who inspired Ansel Adams with his large-format, view camera. I then went to the Museum of Modern Art to view the photographs of O’Sullivan. At the time, I worked as a darkroom technician restoring old black and white photographs, while studying photojournalism at college.

New York University is an important place in the history of photography. This is where Brady's mentor, Samuel F.S.B. Morse, experimented with the new discovery he recently brought back from Paris — the Daguerreotype. His colleague, Dr. John William Draper, a chemistry professor, took one of the first known portraits with a camera on the rooftop of the university at Washington Square.

Little is known about O’Sullivan. As James D. Horan states in his biography, Timothy O’Sullivan: America’s Forgotten Photographer, “There were few clues, only his name, a four-line obituary...” Though we don’t know much about Tim. What remains are his photographs.

One day after class, I stood on the corner of Broadway and Tenth, the former location of one of Brady’s Studios. Looking at Grace Church, I thought about O'Sullivan and his photographs. Over to the right, down the street, is The Ritz where I saw The Replacements in 1986 perform songs from their album Tim. I then decided to write a book about O'Sullivan as a young apprentice at Mathew Brady's studio, combined with my experience as a darkroom technician, and the title would be Tim.❏

Daniel A. Sheridan

 

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Goodreads Reviews

Jeff Anthony
Tim’s journey hit me harder than I expected. Here’s a ten-year-old kid thrust into a world of adults, expectations, and art in its infancy Goodreadsand somehow he finds his way. Sheridan shows us how dreams are built from mistakes, patience, and a bit of light. It’s not just historical fiction; it’s a story about growing up, taking chances, and believing in your craft.

Isabella Aiden
There’s something nostalgic and deeply human about this book. It’s not just the historical setting, it’s the feeling of touching something fragile yet eternal. The way Sheridan describes Tim’s apprenticeship reminded me of my own first job, that mix of fear, wonder, and wanting to make someone proud. You don’t need to love history to love this story. You just need to love people.

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Timothy H. O'Sullivan

Tim article

Article by Dan Sheridan


David Handschuh

Dave HandschuhClick here to read about David Handschuh, a newsphotographer with the NY Daily News.
Article by Dan Sheridan.


The Darkroom

Darkroom

Article by Dan Sheridan


New Wave Irish

Daily News

Article by Dan Sheridan


The Trouble with Harry

Daily News

Article by Dan Sheridan


Inscription Rock

Inscription Rock

Article by Dan Sheridan


Goodreads Reviews

Brazil
There’s a moment in this book a quiet exchange between Tim and Brady over a failed plate that broke me in the best way. Sheridan uses that small failure to show us Goodreadseverything about art, mentorship, and the human need to leave something lasting behind. The writing is tactile and sensory; you can feel the heat of the lamps, the sting of chemicals on skin. But more than that, you feel Tim’s longing to understand the magic in front of him. I’ve read many historical novels that describe the past; this one invites you into it. It’s history with heartbeat and breath. Sheridan’s background as a photographer gives the story a rare authenticity, but it’s his empathy that makes it unforgettable.

Catherine Vickson
Reading Tim felt like stepping into a sepia-toned photograph that suddenly came alive. Daniel Sheridan doesn’t just recreate 1850s New York he resurrects it. The grime, the wonder, the scent of chemicals in Mathew Brady’s studio… it’s all there. Tim’s story is quietly powerful a boy pulled from the comfort of home into the birth of a new art form. What I loved most was how Sheridan captures curiosity itself that spark that drives invention. I turned the last page feeling grateful to both O’Sullivan and the author who brought his early years to life so vividly.

Jenny
What a stunning piece of writing. Sheridan’s prose is so sensory I could almost smell the metal, the smoke, the oil lamps burning late into the night. He paints 19th-century New York in broad, cinematic strokes, yet never loses sight of the small human details that make it all matter a look, a hesitation, a boy’s trembling hands learning to hold a fragile glass plate. This book deserves all its praise and more.

Fabian Briggs
The atmosphere in this book is electric or perhaps chemical, since we’re in a photography studio in 1850. Sheridan’s descriptions of early cameras, exposure times, and developing plates could have been dry in another writer’s hands, but here they feel alive. He makes art out of process. Tim’s growth from nervous apprentice to confident young artist mirrors the evolution of photography itself. Truly unforgettable.

Amazon



Juliette Gabriel

I expected a dry historical novel, but this one surprised me. It’s full of warmth and humor, and the characters feel like real people rather than figures in a textbook. Tim’s apprenticeship under Brady is written with such care you can feel both the awe and the frustration of learning something revolutionary. Sheridan’s own love of photography shines through every page, making the technical moments feel almost poetic. I learned, I laughed, I even teared up. This book is a rare find.

Kessy Smith
You can hear this book — the clatter of hooves on cobblestones, the hiss of chemicals, the creak of wood floors in Brady’s studio. Sheridan has recreated a lost world in sound and motion. I didn’t just read Tim; I lived inside it for a while. I wish more historical fiction were written with this much life.

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Luiz Owen

This book spoke directly to the artist in me. Sheridan writes about the pursuit of art, the frustration, the fleeting moments of beauty with honesty and grace. Tim’s journey mirrors the creative process itself: messy, surprising, and transformative. I highlighted so many passages just for their sheer truth.

Goodreads Kelly Thomas
There’s a touch of magic in this story not fantasy magic, but the kind that lives in discovery. Tim’s curiosity feels contagious, and I found myself smiling through chapters just because of his wonder at how light can be captured forever. Sheridan manages to make the birth of photography feel as miraculous as it must have felt in 1850. It’s a joy to read.

Tim Book Tim by Daniel A. Sheridan

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