Clarissa (Rial) Mattox was my G-G-Grandmother. I realize that this is an old posting on this forum but I'll give it a try anyway, hoping for a response.
The information I have gathered shows Clarissa was born in New Jersey on December 10, 1812 and died in West Union, Greene County, Pa. on March 30, 1894. She is buried in West Union Cemetery next to her husband John Mattox/Mattax and parents Samuel and Mary Rial. Two of her sons, George N. and Elias H. Mattox are buried next to her also. I have photos of the graves as well as a picture of Clarissa. Anyone interested in this information or pictures may contact me by posting a reply here or at my e-mail address:
rlpolen@snet.netRalph Polen