On 9 February 1859, he married Elizabeth Luckey, at Washington Point, Pennsylvania. They apparently had no children. [source: 3]
On 18 June 1861, his house burned down, with the only record of his marriage. [source: 3]
On 25 March 1863, he was mustered into company K of the 94th Pennsylvania at Washington, Pennsylvania. [sources: 1 (K 91), 2 (K 91), 3]
On 18 December 1863, he died of 'lung fever'. [source: 3]
On 1 August 1865, his widow, Elizabeth Mason, applied unsuccessfully for a pension, from Morris, Grundy [?] County, Illinois, under the Act of 14 July 1862. The Pension Office was apparently unable to confirm his service. [sources: 1, 2]
1 pension index, by unit (John Mason)
2 pension index, by name (John Mason)
3 pension documents packet, K 94 PA (Elizabeth Mason widow of John Mason)