Hi there...yes Belle Frye was my paternal great great grandmother. Her son was Oscar Frye.
Oscar died in Eastern State Hospital in 1941. Belle is listed on his death cert as Belle Smith. His father is listed as Ben Frye.
Unfortunately I have no idea who supplied that information to Knox county. So Ben(jamin) Frye is all I really have to go on. I'd love to find a marriage register with the two of those...but have not found one as of yet through Ancestry. Luckily for me I live close to the East Tennessee Historical Society...so I'm able to go there to their wonderful collection and browse through all sorts of records...but still no luck with Benjamin Frye.