Who originally penned the popular verse that begins: "Here I sit, all broken-hearted"?

I have come across several different answers as to the etymology of this phrase. Some of the answers included Elvis, Spock, Christ, Freud, and Newton. I somehow doubt any of these are the correct answer. It appears to have been a popular graffiti in the old theaters and has carried on ever since. Possibly the origin will remain unknown. It is linked to the term 'spend a penny'.

SPEND A PENNY phrase. 1. To go to the toilet. The phrase has its origins in the days when most toilet stalls in the LOO had locks which would only open after a penny had been inserted. As in this graffiti,

Here I sit broken hearted,
Paid a penny and only (passed gas).
or
Definition of torture: Standing outside a LOO with a bent penny.

http://folklore.usc.edu/here-i-sit-broken-hearted/