Nancy SMITH was living with her son Bailey Dock SMITH in Comanche County in 1900.
I have taken a look at Newton SMITH before this, and ruled him out, I can't now recall why, I'll have to dig through my notes. The Nancy SMITH I think is mine was living with the Thomas Hooker family in Hill County in 1880. She is listed as head of the second family group, Thomas Hooker as head of the first family group, in the same dwelling.
I have just completed a search of probate indexes and minutes in Hill County but did not find my SMITHS there. I did find a James SMITH named in the records for Thomas HOOKER when Thomas was administering the estate of his deceased wife Emma HOOKER. I plan to search for any James SMITHS in Hill County, but I think it was too late to have been Nancy SMITH'S husband, as Emma HOOKER was still alive in 1880 when Nancy appears to be a widow.