This series includes correspondence, notes, drafts, clippings, presentation slides, and photographs relating to various aspects of Hamilton's contributions to the discovery of the DNA double helix.
Sub-series I: DNA 50th Anniversary contains articles, clippings and correspondence related to the 50th anniversary of the discovery of the structure of DNA in 2003.
Sub-series II: Rosalind Franklin contains correspondence from Aaron Klug and a draft of a paper refuting facts from Klug's article "Rosalind Franklin and the Discovery of the Structure of DNA."
Sub-series III: “The Double Helix” Controversies contains correspondence, articles, clippings as well as chapter by chapter notes by Hamilton in response to James Watson's 1968 book "The Double Helix."
Sub-series IV: "DNA Models and Reality" includes notes, drafts of speeches and publications, and reprints. "DNA Models and Reality" was first presented as a talk at the American Chemical Society in April 1968, then at Caltech also in April, 1968. The talk was published as a paper in Nature in May 1968, and eventually was presented as a seminar at the Sloan-Kettering Institute in June 1968.
Sub-series V: Conferences contains presentation notes and correspondence pertaining to the International Academy of Pahtology's 1959 Lymphocyte Symposium and Hamilton's 1968 seminar at the Sloan-Kettering Institute for Cancer Research.
Sub-series VI: Photographs includes professional photographs of Leonard Hamilton, diagrams of the double helix, and DNA x-ray diffraction photographs and negatives.
Scope and Contents
This series includes correspondence, notes, drafts, clippings, presentation slides, and photographs relating to various aspects of Hamilton's contributions to the discovery of the DNA double helix.
Sub-series I: DNA 50th Anniversary contains articles, clippings and correspondence related to the 50th anniversary of the discovery of the structure of DNA in 2003.
Sub-series II: Rosalind Franklin contains correspondence from Aaron Klug and a draft of a paper refuting facts from Klug's article "Rosalind Franklin and the Discovery of the Structure of DNA."
Sub-series III: “The Double Helix” Controversies contains correspondence, articles, clippings as well as chapter by chapter notes by Hamilton in response to James Watson's 1968 book "The Double Helix."
Sub-series IV: "DNA Models and Reality" includes notes, drafts of speeches and publications, and reprints. "DNA Models and Reality" was first presented as a talk at the American Chemical Society in April 1968, then at Caltech also in April, 1968. The talk was published as a paper in Nature in May 1968, and eventually was presented as a seminar at the Sloan-Kettering Institute in June 1968.
Sub-series V: Conferences contains presentation notes and correspondence pertaining to the International Academy of Pahtology's 1959 Lymphocyte Symposium and Hamilton's 1968 seminar at the Sloan-Kettering Institute for Cancer Research.
Sub-series VI: Photographs includes professional photographs of Leonard Hamilton, diagrams of the double helix, and DNA x-ray diffraction photographs and negatives.
Preferred Citation
Series II: Subject Files, 1950 - 2010. Leonard D. Hamilton Collection, Cold Spring Harbor Laboratory Archives Digital Repository. 113-2258940. Update 2026-01-22.
Credit Line
Courtesy of Cold Spring Harbor Laboratory Archives.
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