"As far as I remember with both of those, they had to go abroad to have their surgeries done; it could not be done legally in the UK."
Sorry for going totally off-tangent here (and the very late reply). I can't speak as to the legality of anything, but I think it was more about where the doctors were that would perform such operations.
April Ashley (although then still George Jamieson) was working in France from (or even before) the age of 17 as a female impersonator at a night club in Paris.
Then, at the age of 20, he travelled to Casablanca in Morocco where a French doctor performed an operation to remove his genitals.
Following that operation, George, by now calling himself April Ashley, moved to London