1. Charles J. Heidelberger (Michael's brother) and Michael Heidelberger

Date:

[ca. 1905]

2. Michael Heidelberger's high school graduation photo

Date:

1905

3. Walter A. Jacobs

Date:

[Between 1912 and 1922]

4. Michael Heidelberger in his lab coat

Date:

[ca. 1915]

5. Nina Tachau Heidelberger

Date:

[ca. 1916]

6. Michael Heidelberger with his first wife, Nina Tachau Heidelberger, and his mother-in-law Fanny Tachau on his wedding day

Date:

29 June 1916

7. Michael Heidelberger and his son, Charles

Date:

1920

8. Michael Heidelberger

Date:

[ca. mid-1920s]

9. Theodor (The) Svedberg

Date:

[ca. 1930s]

10. Michael Heidelberger

Date:

[ca. 1930s]

11. Walter W. Palmer

Date:

[1930s]

12. Michael Heidelberger, his first wife Nina, and their son Charles (approximately age 12)

Date:

[ca. 1932]

13. Michael Heidelberger in his Columbia University College of Physicians and Surgeons office

Date:

[ca. 1940s]

14. Michael Heidelberger

Date:

[ca. 1940s]

15. Michael Heidelberger delivering a lecture in Paris, France

Date:

[1950s]

16. Participants at the National Academy of Sciences Conference on Complement

Date:

[1950]

17. Autographed photo of Michael Heidelberger

Date:

[1950]

18. Michael Heidelberger with delegates at the Indian Science Congress in Calcutta, India

Date:

[January 1952]

19. Michael Heidelberger

Date:

[1954 or 1955]

20. Michael Heidelberger at the award ceremony for the Emil von Behring prizes at Philipps University in Marburg, Germany

Date:

[15 March 1954]