Joseph Robinette Biden Sr., 86, father of Sen. Joseph R. Biden Jr. (D., Del.), died yesterday at the senator's home in the Wilmington suburbs after a long illness.
Mr. Biden was born in Baltimore on Nov. 18, 1915. His family moved to Wilmington, where he attended St. Paul's School and Wilmington High School. He graduated from St. Thomas Academy in Scranton.
During World War II, Mr. Biden was an executive with a Boston factory that supplied plastic hulls, a special waterproof sealant applied to all U.S. merchant marine ships built during the war. After the war, he co-owned an airport and crop-dusting service on Long Island.