Possible Family Member for Snodgrass Piper

I found this on Find A Grave, for Clarence Snodgrass Jr.:
Birth: unknown
Death: unknown

Family links:
Children:
Zada Jean Snodgrass (1958 - 1987)*

Spouse:
Zada Jean Snodgrass*

*Point here for explanation

Note: Pre-planned Marker

Burial:
Phillips Cemetery
Dripping Springs
Hays County
Texas, USA
The headstone has his birth year as 1925, and one of Andrew and Lizzie's children was named Clarence b. 1903. This could be his son. I have contacted the person in charge of his grave site (her name is Pieper!), I am waiting for a reply.