Your message makes my day!
Resthaven Cemetery in KY where Wm Porter Hardy's parents were both buried told me that he is NOT buried there; they show him listed as "W. P. HARDY" on his mother's 1979 interment authorization, but have no further information on him.
It prompted me to think perhaps he may be listed as:
"W. P. Hardy"
Hardy family members called him: "Billy Porter Hardy"
Stivers family docs have him as "Porter B. Hardy"
I appreciate your kindness and hope that a researcher at your museum will be able to find more on this man.
We would love to be able to contact Billy Porter Hardy and his children. [referenced as "2 grandchildren" living in Weaverville, CA in his father's 1970 obit]