Ed, here's the info I have on the above:
Orval was born 4/4/1917; Hiwana born 5/18/1921; they had 3 children: Mary Jane, Orval Robert, and Richard Bruce
Hiwana is buried in Pike County, IN (she was my grandfather's sister)
You can e-mail me directly at: firstname.lastname@example.org
. I'll be happy to provide all I have.