[Charles J. Heidelberger (Michael's brother) and Michael Heidelberger] [ca. 1905]
[Michael Heidelberger's high school graduation photo] (1905)
[Walter A. Jacobs] [Between 1912 and 1922]
[Michael Heidelberger in his lab coat] [ca. 1915]
[Michael Heidelberger with his first wife, Nina Tachau Heidelberger, and his mother-in-law Fanny Tachau on his wedding day] (June 29, 1916)
[Nina Tachau Heidelberger] [ca. 1916]
[Michael Heidelberger and his son, Charles] (1920)
[Michael Heidelberger] [ca. mid-1920s]
[Michael Heidelberger] [ca. 1930s]
[Theodor (The) Svedberg] [ca. 1930s]
[Walter W. Palmer] [1930s]
[Michael Heidelberger, his first wife Nina, and their son Charles (approximately age 12)] [ca. 1932]
[Michael Heidelberger] [ca. 1940s]
[Michael Heidelberger in his Columbia University College of Physicians and Surgeons office] [ca. 1940s]
[Autographed photo of Michael Heidelberger] [1950]
[Michael Heidelberger delivering a lecture in Paris, France] [1950s]
[Participants at the National Academy of Sciences Conference on Complement] [1950]
[Michael Heidelberger with delegates at the Indian Science Congress in Calcutta, India] [January 1952]
[Michael Heidelberger arriving in Frankfurt, Germany, on his way to the Emil von Behring prizes award ceremony at Philipps University in Marburg, Germany] [15 March 1954]
[Michael Heidelberger at the award ceremony for the Emil von Behring prizes at Philipps University in Marburg, Germany] [15 March 1954]
[Michael Heidelberger] [1954 or 1955]
[Michael Heidelberger and Alphonse R. Dochez] (May 1955)
[Michael Heidelberger in the Dean of Faculty's office at the University of Kyoto School of Medicine] (October 8, 1955)
[Michael Heidelberger and Charlotte Rosen Heidelberger] [ca. 1956]
[Michael Heidelberger and others at a conference in Geneva, Switzerland] [ca. 1960]
[Michael Heidelberger in his New York University School of Medicine office] [4 January 1968]
[Michael Heidelberger and F. Percheron] [August 1970]
[Michael and Charlotte Rosen Heidelberger playing music in Marburg, Germany] (August 29, 1973)
[Michael Heidelberger, his second wife Charlotte Rosen, and Otto Westphal] [June 1977]
[Michael Heidelberger] (November 21, 1978)
[Michael Heidelberger and Frank E. Karelson at the dedication of the Karelson Laboratory at New York University] (November 12, 1979)
[Michael Heidelberger, age 99] (May 1987)
[Michael Heidelberger at the 1988 Meeting of the Federation of American Societies for Experimental Biology (FASEB)] [3 May 1988]