Here's something - Raymond J. Johnson, Jr. (aka comic Bill Saluga) has his own YouTube channel.
So far, just the one video. It contains what you might expect - the quintessential Raymond J. Johnson Jr routine, which always begins with someone calling him "Johnson".
The bit was reasonably popular in the '70s and '80s... culminating in a novelty record called Dancin' Johnson in 1979. I seem to remember Saluga doing the song on The Merv Griffin Show at the time - in front of a mostly bemused audience filled with Hollywood tourists.
And don't forget - Johnson's schtick was referenced in Bob Dylan's "Gotta Serve Somebody".