The Old Barbed Wire.Roy Palmer's book "What a Lovely War" has several versions one he refers to the reverse order and refers to an American version.
One that I told Roy about was too late for the book. Robert Graves the War poet was filmed singing snippets of it - what he actually sang (give or take what memory does) I videoed the program.
"Do you want to find the Brigadier" is how it starts. A few verses then the last verse. "Do you want to find your sweetheart...". He wasn't gay but there is a question is hovering there is there not?
I will dig out my transcription and post here from home.