In addition to correspondence relating to poultry genetics and egg production, there are significant notes concerning breeding records, heredity, and race genetics. There are 42 class notebooks kept by Goodale, and 62 volumes of Mount Hope Poultry Farm family, hatching, mating records for the period 1918 to 1956. The collection includes photographs, glass-lantern lecture slides, and artifacts of poultry feathers.

This collection includes documents (correspondence, drafts of talks, personal data sheets, and transcripts) relating to the Conference on Evolutionary Synthesis, which met in Boston in May and October 1974, and was sponsored by the American Academy of Arts and Sciences. There is background material on the organization of the conference, as well as correspondence, especially with William B. Provine, on the editing and publication of the proceedings (Mayr and Provine, eds., "The Evolutionary Synthesis..." 1980).

The correspondence in this collection concerns behavior genetics, evolution, heredity, etc. There is material relating to the congresses of the Permanent International Committee on Genetics, and the IXth (Bellagio, 1953), Xth (Montreal, 1958), and XIth (The Hague, 1963) International Congress of Genetics. There is also correspondence pertaining to the Cold Spring Harbor Symposium on Quantitative Biology (1955), the Mendel Semi-Centennial Symposium (1950), the Soviet geneticists' visit to the U.S. in 1967, and to Anton R. Zhebrak.