This is so funny...I have been researching this family all day and had found a link to Manerva's parents listed in a TN Historical Society Quartely....and came to Genforum to do a post...and found yours at the top of the list.!!!
Manerva did have children with Edison Davidson Stephenson: Charles, Lula, and Minnie. ED Stephenson's first wife was Ellen Dabbs, daughter of John R and Eliza (Menees) Dabbs.
I descend from one of ED children by his first marriage.
According to the quarterly, Mary only had the one child with John Menees..it states that he died early in the marriage.
I have Manerva enumerated with ED Stephenson, children and step children in Morgan Co AL --where ED was from--in 1870 and 1880. Manerva died April 24 1900 and is buried in Hartselle City Cem, Hartselle, Morgan Co AL. ED died in 1903 and is buried there as well. I live in Hartselle, but have not had a chance to take pictures of the grave stones.