Truman selected Hannegan to succeed Walker in this office too, effective July 1. Later in 1945, Truman appointed Walker as a member of the first U.S. delegation to the United Nations. He died in New York City, New York on September 13, 1959, at the age of 73, and was buried in St. Patrick's Cemetery, Butte, Montana. References Further reading External links University of Virginia's Miller Center |- 1886 births 1959 deaths 20th-century American politicians 20th-century American lawyers Democratic National Committee chairs Franklin D. Roosevelt administration cabinet members Laetare Medal recipients Democratic Party members of the Montana House of Representatives People from Plymouth, Pennsylvania Truman administration cabinet members United States Postmasters General Notre Dame Law School alumni United States Army personnel of World War I United States Army officers Democratic National Committee treasurers