Earliest Photo Appearance of a Grandchild?

This digital shot is a little fuzzy. I'll need to reshoot it when I get home. I thought I would go ahead and share it because I think it is the first grandparent photo with a baby boomer! The scene is the back of George and Della's house. It appears that the leaves have fallen for the year, but it still seems awfully bare. Where are the trees and bushes?

Standing are Jim, Lois, Jerry and Della.

Seated are Wilma and George.

And I'm guessing that is Rich in Wilma's arms.