1893 graduate of Jefferson Medical College. Associate Professor of Medicine, Jefferson Medical College, ca. 1895-1918. Dr. Da Costa on right. Notation reads, "John Chalmers Da Costa...1st Lt. and Assistant Surgeon, U.S. Army Medical Corps, 1888-1889".
8.25 x 6.25 in. on 12 x 8.5 in. mount
Thomas Jefferson University