John W. Riche had six children: William Henry "Bill" Riche, John Robert "Bob" Riche, Martha "Matt" Riche, Josephine Riche, James "Jim" Riche, and Joseph Wilson Riche.
Ezekeal Riley Sanderson, Jr. married Josephine Riche (she is my great-grandmother's aunt). Ezekeal and Josephine had three children: Beckie Sanderson, Jim Sanderson, and Nancy Ann Sanderson.
Nancy Ann Sanderson married Henry Fletcher Jones.
I don't know much about John W. Riche, other than just guesses. I think his last name was actually spelled Richie (not Riche). I have that he married Martha Ann Knight (daughter of Albert Knight and Mary Mason) in 1855. He was born in 1833 in either AL or TN. His father may have been Samuel Washington Rich, who died 15 Sep 1855 in MS.
I have a lot of information on the Riche and Knight families that I am willing to share if you are interested.