Gilman Stewart is a 1939 graduate of the School of Agriculture, and received an honorary doctorate of agriculture in 1974. John Stewart is a 1941 graduate of the school, and also received an honorary doctorate in 1974. After World War II, the brothers formed a partnership with their father, Arthur, to farm and continue the seed business Arthur had founded in 1918. Stewart Seeds, Inc., was incorporated in 1976, and produces hybrid seed corn, soybeans, wheat, oats, barley and small grain seeds for sale throughout the Corn Belt, and export to foreign nations. The two families also maintain an outstanding herd of registered Angus cattle. The Stewarts have been outstanding supporters of Greenburg and Decatur County where the family farm is located. They are active in their church, the county Farm Bureau Cooperative Association, the Decatur County Bank Board of Directors, and the Decatur County Extension Committee. Gilman has served as State Fair Board president.