The collection contains photographs of Burton K. Wheeler (1882-1975), as well as his wife and children, and photographs taken during Wheeler's political career, mainly when he served as a United States Senator from Montana from 1923 until 1946. Of particular interest are photographs taken in 1928 when Wheeler was a member of a senate committee investigating a coal miners' strike in Pennsylvania. The collection also includes photographs of Wheeler's involvement in numerous other political and senatorial activities and views of Wheeler with his senate colleagues, miners' union leaders, and other people with whom he was involved during his career as a United States Senator.