She was a member of the Ladies' Ski Club which was the first skiing club for women.The editors of Ski magazine called Mackinnon and fellow British skier Audrey Sale-Barker "probably the first women who could really be called racers." Sir Arnold Lunn wrote that she "had the most remarkable record of any lady racer." In addition to her world championships, Mackinnon won the slalom and combined titles at the prestigious Arlberg-Kandahar races in March 1933, in Mürren, Switzerland.After her skiing success, she married one L.