Lynn: David F. SEWELL is buried at the Griffin Cemetery in Benton County, Indiana. This is near Templeton ( a wide spot in the road) between Otterbein and Oxford. I read this cemetery in 1989. This is what I have in my notes from the tombstone inscription: "SEWELL, David F. born 10-09-1819 died 10-20-1903 He Giveth His Beloved Sleep"
I have no record of Henrietta. Also, in my notes I have "probably the son of Joseph Sewell of Pike County, Ohio." I'm not a Sewell descendant - I just have a few notes on some different families.