From Wikipedia, the free encyclopedia William Lawrence Boyd (June 5, 1895 – September 12, 1972) was an American film actor who is best known for portraying the cowboy hero Hopalong Cassidy. Boyd was born in Hendrysburg, Ohio, and reared in Cambridge, Ohio and Tulsa, Oklahoma. He was the son of a day laborer, Charles William Boyd, and his wife, the former Lida Wilkens (aka Lyda). Following his father's death, he moved to California and worked as an orange picker, surveyor, tool dresser and auto...