1855 289 Broadway, New York, New York.
Professor O’Neil was recorded in one advertisement that appeared on May 3, 1855 in The New York Herald (New York, New York). New York Picture Company.—Daguerreotypes, 25 and 50 cents; photographs, $1 to $5.—A club of twenty artists employed taking 600 daily, by a principle of economy, system, and speed. Professors O’Neil and Von Sneidenburgh, of Ireland and Germany, engaged by this company, 289 Broadway.
Professor O’Neil is not recorded in other photographic directories. 289 Broadway is Silas A. Holmes address, he often mentions in his advertisements that he employs twenty to twenty-five international artist.