Photograph of Karl Sudhoff. Inscription in upper left hand corner of the photograph indicates Professor Sudhoff was the guest of honor on the occasion of the dedication of the Welch Library of Johns Hopkins University and the Institute of the...
Photograph of Alan Mason Chesney. Chesney was Associate Professor of Medicine and Dean of the Hopkins Medical faculty. Autograph note with Forbus’ initials on verso of photo.
Photograph of the Pathology Staff, Johns Hopkins Hospital, 1928-1929. MacCallum is seated in the center of the front row, fourth from left. Forbus is at far right, second row.