'A Bunch of Violets Blue' brings up many more references on Google.
Currently working my way through the 1570 listings, but so far no info - mostly dicography listings only.
The most interesting snippet so far concerns Daisy Chapman (http://www.mustrad.org.uk/articles/chapman.htm):
"Unusually, there's only one other known version of the song in Roud, and that's another sound recording - of George Hirst of Dorchester, Dorset, collected by Nick & Mally Dow, in 1986 and published on the cassette Diamonds in the Dew, (Old House OHC 108). Danny Stradling also recorded Daisy's version with the Old Swan Band on Old Swan Brand (Free Reed FRR028) in 1978. Daisy's will probably be the only recording currently available. "
A recording to add to my wish-list!