Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
A note from the Winter 1939 issue of the Veterinary Student, as well as congratulatory notes on the ISU Veterinarian's 50th anniversary from Dean Pearson of the College of Veterinary Medicine, and Nolan Hartwig, Secretary/Treasurer of the Alumni Association.
Iowa State University Veterinarian; Pearson, Phillip T.; and Hartwig, Nolan R.
Iowa State University Veterinarian: Vol. 50
, Article 4.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol50/iss1/4