This file contains correspondence with the American Museum of Natural History regarding the Museum's bison habitat group.

This file contains correspondence with Hanson Puthuff regarding background paintings for habitat groups as well as correspondence regarding mountain sheep, mountain goat, and bison habitat groups.

This file contains mixed correspondence as well as correspondence regarding Museum closures and the layoff of Herman T. Beck and includes correspondence regarding the mounting of polar bear and bison skins for habitat groups.

This file contains correspondence with the mechanical department regarding the bison group background painting and repairs to the taxidermy shop.

This file contains correspondence with Charles A. McLaughlin regarding the bison habitat group, taxidermy lab construction, and publication of a North American mammal hall catalog.

This file contains correspondence with Mel Lincoln regarding the elephant waterhole group, the bison group, and includes an exchange with Duncan Spencer, background artist.