This quote appears in an article "Folk-Song of Nebraska and the Central West: A Syllabus" by Louise Pound, in Publications of the Nebraska Academy of Sciences, Vol. 9, No. 3, 1915, page 61:

XXII. Humorous Songs

14. O MR. CAPTAIN, STOP THE SHIP

O Mr. Captain, stop the ship. I want to get out and walk.
I feel so flippety flippety flop, I'll never reach New York.
O Mr. Captain, stop the ship. I'm sick of the raging main.
Hire, hire, O hire a cab, and take me home again.