In a handwritten note F.E.P. says this about "Bramble Briar" (Vaughan Williams Collection):
"A Famous Farmer" and its corrupted version "A female farmer" are other names for "Bruton Town" which dates from the early 18th century at least, but is probably much older. The Constant Farmer's Son is a 19th century re-write of the older song in a different metre.