Thank you for your answer.I have been informed that Jake was in fact Jacob Perry Colclasure, and that she was Mary Lucinda Williams, daughter of John (deaf) Williams. Old John is found in Washington Co, AR, on several census records, and ends up with the Colclasure family in 1880 census.
There are more researchers on this site who can tell you about his family and other Colclasure or other spellings.
I was interested in learning about the Williams side. Would love to have a list of Jacob and Lucinda's children.