Robert J. (John) Alcorn, son of Nancy Lewis and Richard Alson Alcorn married Annie Frances Gragg. He was born 8 February 1873 and died 10/12 February 1947. In the Dickens Cemetery records he is buried beside Mary C. Alcorn who was born 1 June 1882 and died 3 June 1946. Does anyone know her maiden name and when he married either one of them?