lower left in plate: HOMER; across bottom: SCENE IN UNION SQUARE,NEW YORK,ON A MARCH DAY. / Policeman. "Lost anything, Sir?" / Exasperated Old Party. "Don't you see that I 've lost my hat?" / Policeman. "Describe it."
- Foster, Allen Evarts. "A check list of illustrations by Winslow Homer in 'Harper's Weekly' and other periodicals." Bulletin of the New York Public Library 40 (1936): 842-852. Separately published New York: New York Public Library, 1936.
- Gelman 1969, no.95.
- Kelsey 1977, no.78.