The Six Companies, Inc. Hoover Dam Photograph Collection (1931-1935), consists of approximately 400 black-and-white photographic prints contained in two photograph albums and an additional twenty-one loose black-and-white photographic prints with ten corresponding photographic negatives.

The Henderson Public Library Photograph Collection on Henderson, Nevada (approximately 1940-1988) depicts life and growth in Southern Nevada. The collection documents the growth of Henderson, Nevada through images of Basic Magnesium Incorporated, housing throughout the area, and events. The documentation of Basic Magnesium Incorporated, its activites, personnel, and buildings from 1942 through 1944 is prominent in this collection.

The James "Dee" Donithan Collection of Nevada Test Site Photographs (approximately 1970-1999) consist of 8x10 photographs depicting flowers, landscapes, wildlife, workers, work sites, and testing equipment at the Nevada Test Site. The photographs were printed by the Lawrence Livermore National Laboratory in Mercury, Nevada, and collected into a binder by James "Dee" Donithan.