Shorthorn Society's grading register  for Dairy Shorthorn cattle and Northern Dairy Shorthorn supplementary register classes A., B., and C.
Shorthorn Society.
London : The Society,
"Containing particulars of foundation cows and their female produce born on or before December 31 ... "
Vol. 48 of the grading register contains v. 15 of Northern Dairy Shorthorn supplementary register.
Shorthorn Society's grading register for Dairy Shorthorn cattle