I agree with Claire Bear that the last two lines of each verse are repeated as a 'chorus'. The way it is printed in Lingenfelter and Dwyer would seem to make the last lines of the first verse repeatable as a chorus, but this doesn't work.
The song as printed in Lingenfelter and Dwyer is taken from the 1876 printing by Sherman and Hyde, San Francisco. It has not been expressly stated, but was the 1874 printing in The Great Emerson New Popular Songster the same?

The lyricist's name perhaps should be cited as Charles Bensell ('Ch. Rhoades'), his real name- but was sheet music published in the 1876 printing? The "Arr. Zimmer" would seem to indicate so. If the tune is original, Zimmer probably was the composer. Was Zimmer with the Emerson Minstrels? Details and Trivia, but answers would be nice to have.

"The Chinese Question" was the subject of much newsprint, oratory and heat from the Gold Rush days of 'Forty-Nine to as late as 1930, especially in the West. The section of songs about 'John Chinaman' could not have been deleted from Lingenfelter and Dwyer without leaving a large hole in the fabric of "Songs of the American West."