Mary "Mollie" Jarvis married my great grandfather's brother Sterling. Sterling was an interesting character and the local blacksmith. His first wife, Samantha, died when he was 56, leaving several children still at home, the youngest, Lucy, was 9. I guess Sterling thought he needed a wife so he married Molly Jarvis when he was 71 and she was 19.
In the 1910 Census, Mollie and Sterling were still doing fine. He still had a daughter at home, not married and 24 years older than his wife.
Sterling died in 1915 at the age of 87. Mollie continued on and remarried when she was 37, right after Sterling died. I probably would not have made the connection except my great grandmother writes about it.
November 22, 1918
"Your Uncle Sterling's widow married a Quillin and lives on South side of Clinch Mountain. Has 2 children."