Student, Yale University, 1933—1936.
With Insurance Company North America, New York City, 1937—1941. Broker Marsh & McLennan, Inc., Boston, 1946—1976. Director Newport Electric Corporation, Rhode Island.
Former corporator Provident Institution For Savings. Commander United States Naval Reserve, 1941-1946.
Chairman advanced gifts Boston Community Fund, 1954. Board directors Rogerson House, Seamen's Church Institute, Newport, Rhode Island. Founder member, regional vice president New England, United States Naval War College Foundation.
Overseer, manager Sears Fund. Overseer Children's Hospital Medical Center Boston, since 1969. Active leadership United Way of Massachusetts Bay, 1969—1982.
Overseer Children's Hospital Medical Center. Member of Somerset (Boston), Newport Reading Room, Clambake, Newport Country, Ida Lewis Yacht, Tennis and Racquet, Royal Bermuda Yacht, Country (Brookline, Massachusetts), Brook (New York City).
Married Olivia Ames Manice, September 10, 1944. Children: William DeForest III, Oliver Ames.