Clergyman. A minute book (1900–1908) kept by the secretary of the Apache Indian Mission at Fort Sill, Oklahoma; manuscripts (n.d.) concerning the history of the Dutch Reformed church schools, the Comanche Mission, the Warm Springs Apaches, and Indian conversion to Christianity, along with booklets, pamphlets, and newsletters (1939–1948) regarding the history and constitution of the Dutch Reformed Church, and the evils of narcotics.