3. Georgia O’Keefe (1887 – 1986)
This Wisconsin born artist may not have broken all boundaries of the art world, but she was certainly amongst the more daring women of her time. As the spouse of modernist photographer Alfred Stieglitz, Georgia O’Keefe would pose nude for his portraits, but it was her own exploration of the female body which made her a real feminist. Her large paintings of landscapes all resembled and pointed towards the vaginal form, putting the female reproduction organ in the centre of attention, which at that time was still unusual.