Canadian Shorthorn Herd Book
Canadian Shorthorn Association
MacKay, A. J., Macdonald, Man. McKay, Arthur, Cape Rich, Ont. McKay, David,
Owen Sound, Ont. McKay, Donald G., Beverley Station, Sask. Mackay, Farm
Dairy Company, Indian Head, MacKay, Hugh, St. Mary's, Ont. McKay, Hugh &
Sons, ...