I have a 'Jimmy' Oliver in my family tree who married Selma Stillman. Selma was the daughter of John Raymond Stillman and Sadie Chesson.
There are quite a few Davenports, some from VA, mostly from NC in our family. We are descended mainly from Alvah Davenport (born 2/8/1827, died 3/4/1892). He married Eliza (Caroline) Todd (born 9/6/1829, died 11/7/1905).
I have a lot more information. Please let me know if you have additional names or relatives and I'll search what I have!