The H. Bryon Mock photograph collection contains an autographed portrait photograph of President Lyndon Johnson, and other politicians.

William D. “Bill” Rishel (1969-1947) was a Utah bicycle and automobile enthusiast who promoted both industries in the state in the late nineteenth and early twentieth centuries.

Joseph Rosenblatt (1903-1999) was a Jewish American businessman who, with his wife Evelyn Rosenblatt (1910-2004), contributed philanthropically to the University of Utah and to Utah's arts organizations. This collection contains photographs depicting the Rosenblatt family, properties, travel, and philanthropic events and images documenting EIMCO, Joseph Rosenblatt's mining equipment company.