After the War he was living in
Philadelphia but in 1946 returned to his native Lexington where he founded W. T. Young Foods, Inc. that made "Big Top" brand
peanut butter. He developed the business into one of the leading producers of peanut butter in the United States. After he sold the company to
Procter & Gamble in 1955, it was renamed
Jif peanut butter. William Young continued to manage the peanut butter manufacturing operation for Procter & Gamble until 1957, at which time he founded W. T. Young Storage, Inc. William Young joined the board of directors of
Royal Crown Cola and served as its chairman from 1966 to 1984. He was also a director the Kentucky-American Water Company, and the First Security National Bank and Trust Company of Lexington. At one time, William Young was the single largest shareholder of
Humana health insurance company. Through the 1960s and early 1970s, he served on the board of directors of
Kentucky Fried Chicken with CEO
John Y. Brown Jr. When Brown was elected governor of Kentucky in December 1979, he chose Young as chairman of the executive cabinet. Young also served as chairman of the Kentucky Economic Development Corporation, a private organization aimed at boosting economic development in the state. Brooke
Overbrook Farm In 1972 William Young established Overbrook Farm near Lexington, Kentucky. In 1983 he bred
Storm Cat, the most important horse of his career. Storm Cat went on to become one of the world's highest priced
sires and almost entirely responsible for William Young being voted the 1994
Eclipse Award for Outstanding Breeder. Overbrook won the 1996
Kentucky Derby with the home-bred colt
Grindstone and captured his second Breeders' Cup Juvenile that fall with
Boston Harbor. His daughter Lucy married renowned French
horse trainer François Boutin and remains active in the industry. On June 9, 2009, William Young Jr., who assumed control of the Overbrook operation upon the death of his father, announced that his family would be selling the majority of their bloodstock. During the next few months Overbrook sold off its resident stallions then in September sold 48 yearlings for $6,644,000 and in November sold 148 horses for $31,760,000 including Honest Pursuit, a daughter of Storm Cat who sold for $3.1 million to
Wertheimer et Frère. ==Philanthropy==