Unit: H Troop, 2nd Squadron, 11th Cavalry Regiment
Entered service: 3-Jun-1901
Enlisted: Bangor, Maine
Hometown: Springfield, Maine
Campaign: Philippine Insurrection
Date of casualty: 18-Sep-1902
Cause of death: Alphonso J. Clay died from dysentery pulmonary tuberculosis.
Location of fatality: Vigan, Philippines
Notes: Repatriated on board the Logan. Received in San Francisco February 12, 1904.
Place of interment: San Francisco National Cemetery, San Francisco, California, USA