Catholic

Laing, Rev. Francis S. "German-Russian Settlements in Ellis County, Kansas." Kansas Historical Collections 11 (1909-10): 489-528. Focuses on Catholic element of this migration.

Petersen, Albert Jepmond, Jr. "German-Russian Catholic Colonization in Western Kansas: A Settlement Geography." Doc. diss., Louisiana State University, 1970.

Schock, Adolph. In Quest of Free Land. San Jose, Calif.: San Jose State College, 1964. Coverage includes German-Russians, Mennonites, Catholics, and Lutherans in the old Northwest and on the Plains (Kansas, Nebraska, and the Dakotas) from 1700 to 1929.