Quite plausibly, Mooh - but I've never heard of Oliver H Perry, and I have heard of Pogo.

That often happens to quotes, they get attached to the first well known character to say them - "I wish I'd said that" said Oscar Wilde. "You will, Oscar, you will."

Unfair maybe, but a quote with a face gets more depth and conveys more meaning. A bit like posts on the Mudcat needing a name attached to it.