Well, you're partly right.
Hubby's great-aunt Margaret Mary Steiner (1861-1913) married Elroy D. Post (1858-1929) in 1883.
They soon moved to Knoxville, Tennessee, where he was a sign painter in his own business for more than 30 years.
Elroy remarried a few years later, to Merida, and the couple named their only child after Elroy's first wife. When Elroy died, he, too, was buried in Old Mission Cemetery, right next to his first wife, Maggie. They're the only two in the Post plot. Hmmm.