1851 252 Broadway, New York, New York. 1851 349 Broadway, New York, New York.
John G. McKean was recorded in an announcement on October 13, 1851 in The New York Herald (New York, New York). Notice.—John G. McKean respectfully informs his business and personal friends, that having dissolved all connections with his late place of business, (Washburn’s, 252 Broadway,) he is now permanently located at Whitehurst’s Gallery, 349 Broadway.
John G. McKean is listed in Craig’s Daguerreian Registry as being active at the 252 Broadway address from 1851 and 1852-1854 324 Broadway.