It does wander a little into epitaph territory at times: the following inscription is quoted at Inscriptions: by Rita Smith, from some time after 1838:

"Peter Ingray is my name
England is my nation
Bassingbourn is my living place
And Christ is my salvation.
When I'm dead and in the grave
And all my bones are rotten
Take up this book and in there look
And see I'm not forgotten.

Signed, Peter Ingray"

That second part, too, was pretty common in one form or another.

As for "Johnson Johnson", there may perhaps be some connection (if only by analogy) with My Name Is Yon Yonson.