1. Letter from J. Oliver Lampen, American Cyanamid Company to Joshua Lederberg Creator: Lampen, Jay Oliver, 1918-American Cyanamid Company Date: 12 November 1945 Genre: Letters (correspondence)
2. Letter from J. Oliver Lampen, American Cyanamid Company to Joshua Lederberg Creator: Lampen, Jay Oliver, 1918-American Cyanamid Company Date: 21 November 1945 Genre: Letters (correspondence)
3. Letter from J. Oliver Lampen, American Cyanamid Company to Joshua Lederberg Creator: Lampen, Jay Oliver, 1918-American Cyanamid Company Date: 6 August 1946 Genre: Letters (correspondence)
4. Letter from J. Oliver Lampen to Joshua Lederberg Creator: Lampen, Jay Oliver, 1918- Date: 16 September 1952 Genre: Letters (correspondence)
5. Letter from J. Oliver Lampen to Joshua Lederberg Creator: Lampen, Jay Oliver, 1918- Date: 2 August 1962 Genre: Letters (correspondence)