He wanted head and hands and arms on a pillow - in many different positions. I was asked to move my hands in many different ways - also my head - and I had to turn this way and that. There were nudes that might have been of several different people - sitting - standing - even standing upon the radiator against the window - that was difficult - radiators don't intend you to stand on top of them. (On being photographed by Alfred Stieglitz)
Roxana Robinson, Georgia O'Keeffe (1989). “Georgia O'Keeffe: A Life”, p.207, UPNE