The collection consists of aerial photographs of western South Dakota, particularly around the Black Hills area. Some of the images track beetle infestations in the Black Hills. Images taken by the Army Corps of Engineers and the Department of Agriculture.

Blueprints, construction photographs

This collection is composed of materials from a trip made by Musson to Somalia, East Africa in 1954. Included are scrapbooks, photographs, negatives, slides, notes, correspondence, some publications and articles about Somalia, maps, and trip preparation items.

The scrapbooks consist of pictures taken while in Somalia. Included are Musson's translations of the Italian descriptions that are written on the back of most of the pictures. The photographs, negatives and slides consist of more pictures of Somalia but do not include any description of each image.

The notes consist of writings made by Musson while in Somalia. The correspondence consists mainly of communications with the Foreign Operations Administration in preparation for Musson's trip. The publications and articles include items about Somalia that Musson probably read in preparation for his trip. The trip preparations include information about customs in Somalia, immunizations for travel abroad, and some paper work that includes an investigation form for security clearance that details some biographical information about Musson. Also included are a few maps of Somalia that show some of the places that Musson visited.