I read that and said “no way”, and then I did a little math. If a vet serving in his teens had sired a child in his 70’s and that child had a long life, then I’ll be dipped in spit, it absolutely could happen. Wow.
he would have been 80 at the birth.
I couldn’t find it with a quick Google, but I believe Benjamin Harrison’s grandson just recently died. I remember reading it and thinking the same thing.
It would not be that uncommon for a Civil War veteran with a pension to marry a much younger woman, who would take care of him during his old age in exchange for widow survivor rights to his pension. He might not even mind if she had a child by someone else, as long as she continued to take care of him.