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 Nov. 16, 1940, a black seven-year- old mare was brought to the Stange Memorial Clinic with a history of lameness and enlargement of the fetlock and pastern joints of the right posterior limb.
McClelland, E. S.
"Pitchfork Tine in a Horse's Leg,"
Iowa State University Veterinarian: Vol. 3
, Article 15.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol3/iss3/15