Bu Gwen John yn mynychu Ysgol Gelfyddyd Gain y Slade yn Llundain rhwng 1895 a 1898, a bu'n astudio am gyfnod byr ym Mharis. Ym 1903, aeth gyda Dorelia McNeill ar daith gerdded trwy Ffrainc. Erbyn dechrau 1904, roedd wedi ymsefydlu ym Mharis. | Gwen John attended the Slade School of Fine Art in London between 1895 and 1898, and studied briefly in Paris. In 1903, she accompanied Dorelia McNeill on a walking tour through France. By the beginning of 1904, she had settled in Paris.