Further reading about Pine Grove Farm and Rag Apple Korndyke 8th, "The Greatest Bull in the World," is below. At any link on Archive.org you can scroll down for the multiple downloading options at the right side of the webpage.
2015 book Were They Truly Champions? by Terrence Grant, NY dairy farmer & owner of holstein cattle herd. Available from the Museum Store (either at the Museum or by mail).
From Holstein-Frisian Aristocracy (1915 book) a four-page feature on Pine Grove:
A July 1, 1916 article in the Buffalo Evening News about Pine Grove Farm:
A 1918 booklet A True Story of Two World Champions by Oliver Cabana, Jr. about his cattle and Liquid Veneer products:
A 1919 booklet about certified milk produced at Pine Grove Farm and bottled by Queen City Dairy Company:
A 1985 feature from Holstein World magazine about The Cabana Case:
Real photo postcards (RPPCs) from the Research Library of the Elma Historical Society. Click to enlarge.
Photos Of Old Elma: October, 1915 RPPC of Pine Grove Farm showing barns and race track.
Photos Of Old Elma: October, 1916 RPPC of Pine Grove Farm showing the many well-built barns and race track.
Photos Of Old Elma: July, 1917 RPPC of Pine Grove Farm showing the residence (front view).
Photos Of Old Elma: August, 1913 RPPC of Pine Grove Farm showing the residence (rear view).
Photos Of Old Elma: the hero from our "Tail" of Old Elma, Rag Apple Korndyke 8th from a 1918 booklet.
Rag Apple was not a nin-cow-poop, nor gull-a-bull.
He enjoyed visiting the Elma Moo-zeum.