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
On April 23, 1946, a 7 year old mare and foal were presented at the Stange Memorial Clinic. The mare had given birth to the foal earlier in the morning.
Iowa State University Veterinarian: Vol. 8
, Article 14.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol8/iss4/14