Need date of death for Frank Mitchell, Sr., husband of Esther A. Pearce (or Peirce). Married in Philadelphia, PA in 1923. Sons Frank Mitchell, Jr. And Joseph Mitchell. Born in 1900 in Pennsylvania. Died in approximately 1970-1976. No birth certificate available. Worked for U.S. Railroad. Father's name Arthur (born in England); mother's name Mary (born in England).