Oscar Brand's note to "Bawdy Songs and Backroom Ballads," vol. 4 (1957):

“I learned the ending published herein [“It was secret agent Henry Hyde!”] at a house party at Vassar. It has supplanted in my esteem the older, ‘She was true to me, true to you, true to the rest of the navy, too.’”

The "true to the navy" lines are also claimed by "Hinky Dinky Parley-Voo."