Founded the Emulous line of cattle with his purchase of Emulous of Sangamon in 1934. The bull sired Emulous of Stoneybrooke, the progenitor of the Emulous line. Corbin, through his Stoneybrooke herd in Fittstown, Oklahoma, became a leader in performance testing. He bred 28 Certified Meat Sires including Emulous 7000, the first one.