"Fair Margaret" was the title Virgie Wallin gave her version of "Fair Margaret and Sweet William." Why?

She was told what the name of it "really" was. In the recording you can her them taping it and telling her to sing "Fair Margaret."

She sings "Lady Marg'ret" throughout so she might title it "Lady Margaret" or it could be more correctly "Lady Margret/Lady Marg'ret" since that's what is sung, the "a not being pronounced.

So what is the title of Vergie Wallin's ballad?

Richie