This colection includes photographic images of railroad bridges, rivers, and bridge construction scenes collected by Clayton M. Crosier and dating from the late 19th and early 20th centuries. The collection also includes papers pertaining to the radio program "International Conversations," sponsored by the Kansas Commission for the United Nations Educational, Scientific and Cultural Organization (UNESCO), of which Crosier was the executive secretary in the 1950s-1960s.

Crosier taught Applied Mechanics and Engineering at the University of Kansas from 1945-1971. This collection consists of correspondence, photographs, a series of pamphlets entitled "Lessons in Health Building," and class notes.