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
The Bureau of Animal Industry employs approximately 1,750 veterinarians for the performance of many kinds of services in administrative, research, and regulatory fields. By act of Congress, the Chief of the Bureau is required to be a veterinarian, and Federal veterinary inspectors must be graduates of veterinary colleges accredited by the Bureau, as maintaining courses of study in line with the requirements of the Bureau's work.
Simms, B. T.
"Activities Of The Bureau Of Animal Industry,"
Iowa State University Veterinarian: Vol. 11
, Article 5.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol11/iss1/5