Cybernetics Material
- Stephen L. Sherwood - Correspondence, 1953-1969
- Correspondence between Stephen L. Sherwood and Warren S. McCulloch.
- V.T. Adamson - Correspondence, 1952-1953
- Correspondence between V.T. Adamson and Warren S. McCulloch.
- Vernon Dolphin - Correspondence, 1959-1960
- Correspondence between Vernon Dolphin and Warren S. McCulloch.
- Walter Pitts - Correspondence, 1946-1969
- Correspondence between Walter Pitts and Warren S. McCulloch.
- Warren S. McCulloch to Cathy Bateson, 1969 July 9
- Correspondence between Cathy Bateson and Warren S. McCulloch.
- Warren S. McCulloch to William P. Allis, 1962 December 4
- Letter from Warren S. McCulloch to William P. Allis.
- William R. Amberson - Correspondence, 1947
- Correspondence between Mrs. Aurice V. Albert, and Warren S. McCulloch.