For the tune to the song "Thais", look here:
Folksong Collector: "Thais" ( http://folksongcollector.com/thais.html )
A MIDI can be found at the bottom of this page:
St. Olaf College: "Thais" ( http://www.stolaf.edu/people/hend/songs/Thais.htm )

The poem was written by lawyer, author and composer Newman Levy, who used the pseudonym "Flaccus". He published it in his book Opera Guyed (Knopf, 1923).

A little more info here:
http://www.stolaf.edu/people/hend/VictoryMusic/NewmanLevy.html