And for anyone who might be wondering about how long some Revolutionary War soldiers survived, there is this from wikipedia:
John Gray (January 6, 1764 – March 29, 1868) was one of the candidates for last surviving U.S. veteran of the American Revolutionary War. He was advertised as such by journalist James Dazell and as of 1876 was believed by the Pension Office of the U.S. Department of the Interior to be the last surviving veteran.
His claim to the "last surviving veteran" of the War depends primarily on the failure of his competitors Daniel F. Bakeman and George Fruits, who died a year, and several years, after him. Bakeman and Gray had been granted pensions, by special act of the U.S. Congress (on February 14, 1867, retroactive to June 1, 1866). The special act was required because the two had not previously applied for pensions or service land grants and Bakeman was unable to prove his service; Gray, while able to prove his service, had only served six months; Fruits had never had any pension.
My 5g-grandpappy (b1861ish) was a revolutionary POW, reenlisted when paroled by the brits, and lived to 1855 - so I’m unsure if it was the wear and tear or just the genes, but I’m proud to be a SAR (though not a member of the org).