...that's the actual Grandpa John who just had a birthday. Not the Grandpa John's blog.
Yes, there really is a Grandpa John. He's not just some made-up guy like He-Man or Indiana Jones or Ed Garvey.
Grandpa John in the '60s:
Grandpa John in the 70s:
(Kinda looks like a reject from Reno 911, doesn't he?)
All further photos of Grandpa John have been confiscated as a threat to national security.