It is nice to hear from you and to meet you. Yes, I would agree that we are related.
Once I confirmed the surname Shell a few years ago, I was able to find a lot more information on Fannie, Archer's first wife. I am not sure if I have a picture of Fannie's headstone or not but, I do know she is buried in the family cemetery in Croaker.
Williamsburg had old ledgers online at one point in time. If you can find them, you will see Fannie's father purchasing several caskets for babies and children. Her father was from Charles City. I believe her father died in Yorktown. It's been a few years since I looked at the information but, Fannie had a handful of half-siblings -- and they lived in Yorktown and you should be able to find them on the Yorktown census. They later seemed to leave the area and move to Newport News.