Appears in exhibition catalog as entry no. 391 (Sale info: $75.00).
"Son of W.L. Sonntag, N.A. - b. New York City, 1870. First exhibited, 1882, at Cincinnati." [P. 87.]
Illustrated Catalogue of the Art Department of the Southern Exposition, Louisville, Ky. 1885. (Third Season.) including the Pictures in the American Art Association's Prize-Fund Exhibition, New York, 1885. John P. Morton and Company, Printers, Louisville, Kentucky.
Artist address: 120 East Twenty-Second St., New York, New York.