George Eastman House has attributed this photograph to Timothy H. O'Sullivan.
E.F. Bleiler (1959) Gardner's Photographic Sketch Book of the Civil War (New York, Dover Publications)
"Negative by T.H. O'Sullivan. December, 1862. Entered according to act of Congress, in the year 1865, by A. Gardner, in the Clerk's Office of the District Court of the District of Columbia. Incidents of the War. Lacey House, Falmouth, VA. Published by Philp & Solomon, Washington. Positive by A. Gardner, 511 7th Street, Washington" printed in the margin recto.
