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 vacant Field Artillery stables behind the Stange Memorial Clinic now provide only a reminder of the life which was once there. Most of the horses were removed to remount depots after they had been given a Mallein test and encephalomyelItis vaccine. Others thait were not considered capable of rendering competent service in Uncle Sam's fighting forces were destroyed. The departure of these horses spelled the end of Iowa State riding organizations and teams for the duration and perhaps permanently. Of the riding organizations and teams which were disbanded by the war, the College Cossacks was probably the most popular among the veterinary students from the standpoint of numbers participating.
Norton, R. E.
Iowa State University Veterinarian: Vol. 6
, Article 8.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol6/iss1/8