She competed at the 1936 World Allround Speed Skating Championships for women in Stockholm, Sweden, the first official World Allround Speed Skating Championships for Women, where she finished sixth overall. Two days after the World Championships, an international race was organised in Uppsala, Sweden. She finished 5th in the 1500m and 6th in the 500m. Two weeks later, during the 1936 World Figure Skating Championships in Paris, there were additional international speed skating races. Donaldson won the 500m and finished second in the 300m.