Bound Ph.D. thesis written by Leland David Harder: The Quest for Equilibrium in an Established Sect; a study of social change in the General Conference Mennonite Church, written in 1962 in Evanston, Illinois for Northwestern University.

This collection contains materials on German-Russian Mennonite families who immigrated to Kansas in 1874. Specifically, the Heinrich (H.) Banman, David P. Unruh, and the C. R. Voth families and their descendants Waldo O. Voth and Emma Unruh Voth are represented, as well as their ancestors, friends, siblings, and other family members. The collection includes photographs, diaries, ledgers, scrapbooks, serials, books, and papers, with a portion of the earlier material in German.