We discovered a first cousin that nobody even knew about until 2 years ago. Apparently my uncle (now deceased) impregnated a woman during the war and never knew about the child. The mother was married and ended up selling the baby, as well as 2 of her other kids, for drug money. My newfound cousin is now in her 70s and her kids bought the Ancestry DNA kit for her 2 years ago so she could find her biological family.
I had a great-aunt who married a silversmith in Canada in 1920, and they moved to Covington, Ky. not long after. He died in the early 30's, and is buried in a cemetery there. It was a double plot, but my great-aunt, who would be long dead by now, was never buried there. The last trace of her was from a city directory in the 50's that said she worked for Western Union in Cincinnati. I wrote them to see if they had any record of her, but they found nothing. Either she went back to Canada, or she remarried at some point, but she disappeared too.