"Lady Maisry" is Child #65, of which "Bonny Susie Cleland" (see old thread and DT) is a variant. Longer than the text above is one in Scott's MSS, noted by Child, V, p. 222 to be little different the Child's A text.
The earliet version of "The Gardener Lad" is in Scarce Songs 1 on my website.
The extra verse quoted by Richard McD. above is from "Dick Darby the Cobbler" (and several other titles) which is in DT, and available on the Bodley Ballads website.