Helen Sunday (Billy Sunday's wife) died 3 years before Billy did.
Billy Reid died June 26, 1940, in London, ON, CAN.
I believe it was Herpes
Billy Sullivan died January 28, 1965, in Newberg, OR, USA.
He died of a heart attack
Billy Meyer died March 31, 1957, in Knoxville, TN, USA.
Billy Milligan died October 14, 1928, in Buffalo, NY, USA.
Billy Muffett died June 15, 2008, in Monroe, LA, USA.
Billy Murray died March 17, 1937, in Youngstown, OH, USA.
Billy Myers died April 10, 1995, in Carlisle, PA, USA.
Billy Otterson died September 21, 1940, in Pittsburgh, PA, USA.
Billy Purtell died March 17, 1962, in Bradenton, FL, USA.