Sa vache Holstein-Friesian May Echo Sylvia a été la première vache, toutes races confondues, à produire 1 000 livres de lait en sept jours, et sa Jersey Rosebay’s Jolly Rose a produit un record de 1 004 livres de matière grasse butyrique en un an.
His Holstein–Friesian May Echo Sylvia was the first of any breed to produce 1,000 pounds of milk in seven days, and his Jersey Rosebay’s Jolly Rose produced a record 1,004 pounds of butterfat over a year.