My Old Man? The onliest one I know was written by Jerry Jeff Walker.
This is from memory at my desk with nothing but an old air guitar to play.


My Old Man


M(C)y old man had a roun(Dm)ders soul,

He(G)ar an old freight train and th(C)en he had to go,

Sa(C)id he'd been blessed with a gy(Dm)psy bone,

I Guess thats the rea(G7)son he was cur(C)sed to roam,


Don