Photographs: Colleagues (identified/signed)

Includes Adolf and Edith Butenandt, 1931; HH Dale, 1932; EC Rodels, 1932; Reichstein,about 1947; Olive and George Smith, 1948; Willard Allen, about 1948; Harold L Mason, about 1948; E W Doisy, given 1948; EC Kendall, given 1948; Seymour Liebermann, 1948; the Heischmanns, 1948; Louis F Fraser, 1948; Ted Astwood, 1948; Henry S Gutermann, 1948; M Evans, 1948; TW Gallagher, 1948; CH Si, 1949; Charles Huggins, 1962; Jack Browne, 1969 Ludwig Fraenkel; TW Gallagher; S Kober; HC Koch,; K G David, E Dingemanse, and E Laqueur; Ernst Laqueur; Peyton Rous; Gregory Pincus; Jessie Marmoston; KH Slotta; some illegible signatures

Some of the 1948 photos are specifically stated to have been taken at the Lawrentian Conference