|Born||6 February 1806
Carrickmacross, County of Ulster, Ireland
|Died||17 August 1886|
|Known for||Telegraphy pioneering|
Henry O'Reilly (February 6, 1806 – August 17, 1886) was an Irish-American businessman and telegraphy pioneer.
He was born in Carrickmacross, [County Monaghan, Province of Ulster]], Ireland. In 1816, he emigrated with his father to New York City. With his friend Luther Tucker he went to Rochester, New York, and organized the Rochester Daily Advertiser. He was active in Jacksonian politics. The postmaster, Amos Kendall, appointed him to the Rochester post office. O'Reilly chose a young Scottish immigrant, James D. Reid, as his assistant. He married Marcia Brooks in 1830.
O'Reilly was one of the Rochester citizens advocating the deepening and improvement of the Erie Canal. He could see that revenues from tolls were not sufficient for major improvements. They advocated borrowing at a time when many considered it immoral.
He promoted a change in the Rochester city charter in 1841 to support free public education. This was opposed by many who preferred education only for a privileged class. He was elected to the subsequent Board of Education. He promoted and became president of the Young Men's Association that created the first library open to the public in the city.
O'Reilly was one of the first authors to write a survey of Rochester and its immediate surroundings, first with a fourteen page tract Rochester in 1835 : brief sketches of the present condition of the city of Rochester. He followed that with a massive publication just three years later, describing in great detail, the Settlement in the West : sketches of Rochester : with incidental notices of western New-York ... (1838, 504 pp., published by William Alling), known colloquially as Sketches of Rochester.
O'Reilly signed an ambiguous contract in June 13, 1845, with Amos Kendall, agent of Samuel Morse, for a telegraph line from the eastern seaboard to the Great Lakes. With others he formed the Atlantic, Lake & Mississippi Valley Telegraph system composed of six independent units including the Atlantic & Ohio Telegraph Company. Its superintendent was James D. Reid. The ambiguity of the contract and O'Reilly's aggressive interpretation led to conflict with Kendall and an acrimonious court action. The subsequent case, O'Reilly v. Morse, has been highly influential in the development of the law of patent-eligibility. When he lost this case, his telegraphy empire declined.
- Robert Luther Thompson, Wiring A Continent--The History of the Telegraph Industry in the United States 1832-1866, Princeton University Press, 1947
- Dexter Perkins, "Henry O'Reilly", Rochester History, Jan. 1945, vol. vii, no. 1
- James D. Reid, The Telegraph in America--Its Founders Promoters and Noted Men, New York Arno Press, 1974