Hi all -
I have looked into it
(what a surprise!
) and as it turns out, the sloop and corvette classes were virtually interchangeable - I asked on the site, World Naval Ships Forums, which, by the way, has a lot if info about individual ships, so, the Jasmine from WWII and the Jasmin(e?) from WWI could have been the same class. (NOTE: I asked about this because the Foxglove, the ship I'm working on, is in the Flower Class, and on this site, info about it appears in a thread about the Flower Class corvettes.)
Anyway, I'm just walking along the convoluted paths of knowledge and I'm happy to have some hiking buddies.