Colin Munro MacLeod

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Photograph of Colin M. MacLeod, M.D., 1909-1972, Professor and Chairman of Department. Dr. MacLeod, along with coworkers Avery and McCarthy, in 1944 showed that DNA was the one and only material in the chromosomes which carries genetic information. Pictured sitting in laboratory, photo from the 1954 NYU Medical Violet yearbook, page 51.

William D. Halliburton

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Photograph of "William D. Halliburton, M.D., F.R.S., 1860-1931, Herter Lecture on Pathological Chemistry for 1904, at University & Bellevue Hospital Medical College. Dr. Halliburton standing in lecture hall, at desk. Item never had a registration record, was accessioned after the creation of the iDB.

Milton Helpern

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Photograph of Dr. Milton Helpern, in lab coat holding medical tool; specimen skulls on shelves in background. This photo was taken in the Legal Medicine Museum located in the Chief Medical Examiners Building. Dr. Helpern was the Chief Medical Examiner of the City of New York. Mounted on hard board; signed.