Citations: Evenhuis, N. L. 1997: Litteratura taxonomica dipterorum (1758-1930). Volume 1 (A-K); Volume 2 (L-Z). 1; 2 Leiden, Backhuys Publishers, VII+1-426; 427-871 S., B15:A2283:1,2, pp. 779-782, Portr. + Schr.verz.
Horn, W. 1939: [Townsend, C. H. T.] Arbeiten über morphologische und taxonomische Entomologie aus Berlin-Dahlem, Berlin 6 (1), B15 10838, pp. 69
Howard, L. O. 1930: History of applied Entomology (Somewhat Anecdotal). Smithsonian Miscellaneous Collections, Washington 84, S. X+1-564, B15: 1018, pp. (Taf. 43)
James, M. T. 1945: [Townsend, C. H. T.] Annals of the Entomological Society of America, Columbus/Ohio 38, B15 10270, pp. 143-144
Mallis, A. 1971: American Entomologists. Rutgers Univ. Press New Brunswick, B15 A1642, pp. 391-393, Portr.
Osborn, H. 1937: Fragments of Entomological History Including Some Personal Recollections of Men and Events. 1 Columbus, Ohio, Published by the Author, 1-394 S., B15: 6024, pp. 212, Portr. (Taf. 8)
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. 186
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., B15: 6024a, pp. 230