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Timothy H. O'Sullivan

Timothy H. O'Sullivan is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Timothy H. O'Sullivan rather than just read about it. In short: Timothy H. O'Sullivan (c. 1840 – January 14, 1882) was an American photographer widely known for his work related to the American Civil War and the Western United States.

Timothy H. O'Sullivan — main illustration
Timothy H. O'Sullivan — illustration

Key takeaways

  • Timothy H. O'Sullivan belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Timothy H. O'Sullivan to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Timothy H. O'Sullivan from memory before moving on to harder problems.

Reference excerpt

Timothy H. O'Sullivan (c. 1840 – January 14, 1882) was an American photographer widely known for his work related to the American Civil War and the Western United States.

Biography O'Sullivan was born on the Beara Peininsula county cork Ireland c. 1840, , moving to New York City two years later with his parents, or in New York City. As a teenager, he was employed by Mathew Brady. O'Sullivan claimed that when the Civil War began in early 1861, he was commissioned a first lieutenant in the Union army. Though, there is no record of him fighting. Alexander Gardner worked as a photographer on the staff of General George B. McClellan, commander of the Army of the Potomac, and was given the honorary rank of captain. Gardner described O'Sullivan as the "Superintendent of my map and field work." Biographer James D. Horan writes that O'Sullivan was a civilian photographer attached to the Topographical Engineers. His job was to copy maps and plans, but he also took photographs on his own time. Although he later listed himself as a first lieutenant, the rank was likely honorary, like Gardner's. From November 1861 through April 1862, O'Sullivan, working for Gardner, followed Union forces to Fort Walker, Fort Beauregard, Beaufort, Hilton Head, and Fort Pulaski. After being honorably discharged, he rejoined Brady's team. In July 1862, O'Sullivan followed Maj. Gen. John Pope's Northern Virginia Campaign. By joining Gardner's studio, he had his forty-four photographs published in the first Civil War photographs collection, Gardner's Photographic Sketch Book of the War. In July 1863, he created his most famous photograph, A Harvest of Death, depicting dead soldiers from the Battle of Gettysburg. He took many other photographs documenting the battle, including Dead Confederate sharpshooter at foot of Little Round Top, Field where General Reynolds fell, View in wheatfield opposite our extreme left, Confederate dead gathered for burial at the southwestern edge of the Rose woods, Bodies of Federal soldiers near the McPherson woods, "Slaughter pen", and others. In 1864, following Gen. Ulysses S. Grant's trail, he photographed the Siege of Petersburg before briefly heading to North Carolina to document the siege of Fort Fisher. That brought him to the Appomattox Court House, the site of Robert E. Lee's surrender in April 1865.

From 1867 to 1869, he was the official photographer on the United States Geological Exploration of the Fortieth Parallel under Clarence King. The expedition began at Virginia City, Nevada, where he photographed the mines, and worked eastward. In so doing, he became one of the pioneers in the field of geophotography. In contrast to the Asian and Eastern landscape fronts, the subject matter he focused on was a new concept. It involved taking pictures of nature as an untamed, pre-industrialized land without the use of landscape painting conventions. O'Sullivan combined science and art, making exact records of extraordinary beauty. In 1870, he joined a survey team in Panama to survey for a canal across the isthmus. From 1871 to 1874, he returned to the southwestern United States to join Lt. George M. Wheeler in his survey west of the 100th meridian. His job was to photograph the West to attract settlers. O'Sullivan's pictures were among the first to record the prehistoric ruins, Navajo weavers, and pueblo villages of the Southwest. He faced starvation on the Colorado River when some of the expedition's boats capsized; few of the 300 negatives he took survived the trip back East. He spent the last years of his short life in Washington, D.C., as official photographer for the U.S. Geological Survey and the Treasury Department. O'Sullivan died on January 14, 1882, aged 42, in Staten Island, of tuberculosis. In 1978, O'Sullivan Peak in Utah was officially named in his honor. In 1986, O'Sullivan was inducted into the International Photography Hall of Fame and Museum.

Gallery

References

Sources

Horan, James D. (1966). Timothy O'Sullivan, America's Forgotten Photographer. Garden City, New York: Doubleday & Company. OCLC 638552. Frassanito, William A. Early Photography at Gettysburg. Gettysburg, PA: Thomas Publications, 1995. ISBN 1-57747-032-X. Biography of Timothy H. O'Sullivan from The Getty Museum The Life of Timothy H. O'Sullivan from the Tucson Weekly, March 31, 2003, by Margaret Regan. Accessed July 29, 2010. Trachtenberg A. (1990), Reading American Photographs, New York: Hill & Wang

Further reading Naeff, W; Wood, J & Heyman, T (1975). Era of exploration : the rise of landscape photography in the American West, 1860–1885. New York: The Metropolitan Museum of Art. Sullivan, Robert (2024). Double Exposure: Resurveying the West with Timothy O'Sullivan, America's Most Mysterious War Photographer. New York: Farrar, Straus and Giroux. ISBN 978-0374151164.

External links

Timothy O'Sullivan gallery at The Atlantic Four Southwestern photos at Phoebe A. Hearst Museum of Anthropology American Treasures (LOC) Western Development, The Wall Street Journal, 30 March 2010 Encyclopædia Britannica

Illustrations

Timothy H. O'Sullivan illustration
Timothy H. O'Sullivan: Timothy H. O'Sullivan, Pueblo San Juan, New Mexico, 1874, stereoscopic albumen prints, National Gallery of Art, Washington, DC, Department of Image Collections.
Timothy H. O'Sullivan, Pueblo San Juan, New Mexico, 1874, stereoscopic albumen prints, National Gallery of Art, Washington, DC, Department of Image Collections.
Timothy H. O'Sullivan illustration
Timothy H. O'Sullivan illustration
Timothy H. O'Sullivan illustration

Worked examples

Example 1 — a first encounter with Timothy H. O'Sullivan

Start with the simplest possible case. Write down what Timothy H. O'Sullivan claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Timothy H. O'Sullivan before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Timothy H. O'Sullivan ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Timothy H. O'Sullivan

In research
Timothy H. O'Sullivan appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Timothy H. O'Sullivan in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Timothy H. O'Sullivan is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1840s births, 1882 deaths, 19th-century American journalists, so understanding it makes those chapters shorter.
In everyday life
Look for Timothy H. O'Sullivan outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Timothy H. O'Sullivan in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Timothy H. O'Sullivan means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Timothy H. O'Sullivan out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Timothy H. O'Sullivan in simple terms?

Timothy H. O'Sullivan (c. 1840 – January 14, 1882) was an American photographer widely known for his work related to the American Civil War and the Western United States.

Why does Timothy H. O'Sullivan matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Timothy H. O'Sullivan?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Timothy H. O'Sullivan.

Tags

  • 1840s births
  • 1882 deaths
  • 19th-century American journalists
  • 19th-century American male journalists
  • 19th-century American male photographers
  • 19th-century American photographers
  • 19th-century deaths from tuberculosis
  • American people of Irish descent
  • American war photographers
  • People of New York (state) in the American Civil War
  • Photographers from New York City
  • Scientists from New York (state)

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