I'd just found this on YouTube...
May Bradley. On Christmas Day


And there is a 2010 CD available from     http://www.mtrecords.co.uk/mt_rec.htm#brad
        
May Bradley         Sweet Swansea   
MTCD349 + 24 page integral booklet in DVD case   39 tracks, 80 minutes   £12.00
"May Bradley is, in my opinion, one of the greatest treasures of the English tradition and, if it hadn't been for the happy accident of her meeting the song collector, Fred Hamer, a treasure that would have been lost ... This CD contains all the songs she recorded ... There are passages of breath-taking beauty here ... they are utterly thrilling.
Chris Bartram, in Shreds and Patches. "

"For the first time, the complete recorded repertoire of this great Gypsy singer, as collected by Fred Hamer. Includes Sweet Swansea, Long a-Growing, McCaffery, My Blue Eyed Lover, The Leaves of Life, On Christmas Day, The Outlandish Knight and 19 other songs."