1926- biographies biography cas casestudies changementdesexe conditionssociales erica feminism féminisme genderidentity gendernonconformity grande-bretagne greatbritain identity identité jan morris painters peintres princeedwardisland rutherford sexchange socialconditions transgenderpeople transgenderpersons transsexualism transsexualisme transsexuals étudesde île-du-prince-édouard