I think Don's right, it's very close to the John Roberts and Tony Barrand version, from "Spencer the Rover is Alive and Well and Living in Ithaca" (Swallowtail Records, 1971 -- you can probably get it through CAMSCO, and it's worth it.) Here are the words I copied down from the record back then (finally found them!)

RAMBLEAWAY

As I was walking down Birmingham Street
In my new scarlet jacket all neat and complete
The young girls they smiled as they passes me by
Saying one to another, there goes Rambleaway

And as I was walking through Birmingham Fair
I spied pretty Nancy combing her hair
She smiled to my face and to me did say
Ain't you the young lad they call Rambleaway

I said, Pretty Nancy, don't you smile in my face
I do not intend to stay long in this place
Then where are you going? Come tell me my dear
I told her I'd ramble, the devil knows where

When twenty-four weeks were over and past
This pretty young wench she grew thick round the waist
And her gown wouldn't meet nor her apron strings tie
And she longed for the sight of young Rambleaway

So come all you young maidens, take a warning from me
When you're courting your fellows don't be easy or free
Don't dress yourselves up and go out on the play
For it's there you might meet with young Rambleaway

Here are John's notes from the album cover:

"Very common in the English tradition, especially in the South. I learned this version at the Manchester University Folk Song Club, from a singer whose name I am afraid I don't recall."

Hope this helps.

Aloha,
Mark