This file contains correspondence regarding construction of the diorama halls as well as correspondence with Mrs. Carl Akeley regarding the sale of taxidermy mounts from the American Museum of Natural History. This file also includes correspondence with Jonas Brothers taxidermy studios and newspaper clipping featuring an article on the collaboration between Theodore Roosevelt and Carl Akeley.

This file contains mixed correspondence regarding hunting deer in Mexico, prohibition against hunting mountain sheep, and the Antelope habitat group and included correspondence with Carl Akeley.

This file contains correspondence with the American Museum of Natural History regarding the Akeley African Hall, wildlife conservation in the Belgian Congo, as well as correspondence with Mrs. Carl Akeley.

This file contains correspondence related to the Simson Expedition to Africa as well as correspondence with Carl Akeley

This file contains correspondence regarding the preparation of the musk ox and sea lion groups as planning for habitat group background paintings and correspondence with Carl Akeley regarding the examination of musk ox specimens for use in the museum.