Dear Diana, I was just looking for one of my ancestors, Maria Matilde Pena.Matilde is not a very common name, so I thought my Matilde and yours might be the same.
My Matilde was married to Jose Leon Ramirez.I have never found any information on her parents.Matilde and Jose Leon lived in Cerralvo, Nuevo Leon.They had about 7 children in the area of Cerralvo.The children's birth were in the 1780's and early 1790's.
I wouldn't be discouraged by the different husband and the disparity on the dates, if I were you.In those days women remarried when they were widowed.
Let me know if you sense any connection between your Matilde and mine. Thanks, Gracie