In 1934 Hettie Dyhrenfurth, wife of Günter Dyhrenfurth, became the first woman to exceed 7000 m when she climbed Sia Kangri (). Her summit record would stand for 40 years, though her altitude record was broken by the French climber Claude Kogan, who reached approximately on Cho Oyu in 1954. The following year saw the first all-female team to visit the Himalayas, made up of Monica Jackson, Evelyn McNicol and Elizabeth Stark, making the first ascent of Gyalgen Peak, .