
author
1882–1968
A Harvard-educated officer, industrial leader, and later Theosophical writer, he moved through several very different worlds in one lifetime. His surviving work ranges from practical military manuals to reflective spiritual essays.

by J. P. (James Perry) Cole, Oliver Schoonmaker
Born in Hurley, New York, in 1882, Oliver J. Schoonmaker studied at Rutgers and Harvard, graduating in 1906. Before his better-documented later careers, he taught mathematics, including at Moses Brown School in Providence and at the American University of Beirut.
Schoonmaker is best remembered in print as the co-author of Military Instructors Manual and The Supply Train; Its Organization and Work, books shaped by his military experience around the World War I era. He also went on to become president of the W. F. Whitney Manufacturing Company, showing how comfortably he moved between education, military service, and business.
Later in life, he was active in the Theosophical movement and wrote essays for Sunrise, including pieces such as "Actions Speak Louder." He died in 1968, leaving behind a life that joined discipline, public service, industry, and spiritual inquiry in an unusual way.