Citations: Anonym 1902: [Claypole, E. W.] Ann. Rep. Ohio Acad. Sci. 10, pp. 21
Gilbert, P. 2007: A Source Book for Biographical Literature on Entomologists Leiden, Backhuys Publishers, 694 S., A 2972, pp. 109
Osborn, H. ((Hrsg.)) 1937: Fragments of Entomological History Including Some Personal Recollections of Men and Events. 1 Columbus, Ohio, Published by the Author, 1-394 S., 6024, pp. 33
Osborn, H. 1946: Fragments of Entomological History Including Some Personal Recollections of Men and Events. 2 Columbus, Ohio, Published by the Author, 1-232 S., B15: 6024, pp. nur Portr.(Taf. 13)
Osborn, H. 1952: A Brief History of Entomology Including Time of Demosthenes and Aristotle to Modern Times with over Five Hundred Portraits. Columbus, Ohio, The Spahr & Glenn Company, 1-303 S., 6024a, pp. 185, Portr.(Taf. 54)