By the '40s and '50s, medical researchers were starting to study trans medicine, but they were aided by their trans patients, like Louise Lawrence, a trans woman who had corresponded extensively with people who had been arrested for public cross-dressing.
A 40-50-es évekre az orvoskutatók elkezdtek transz orvoslást tanulni transz pácienseik segítségével, akik egyike egy transz nő, Louise Lawrence volt, aki hosszasan levelezett azokkal, akiket a másik nem ruháinak nyilvános viseléséért tartóztattak le.