In reply to her request for further information from Dr. Emma Johnstone, OBE, the reply added that "The ability to ride a saddle horse would be a great advantage". Jackson had previously taken up horse riding at Sutton Coldfield Riding School in a desire for more exercise, although her family said she rarely, if ever, left the indoor arena. When she learned that Alberta had the Rocky Mountains, she was keen to go, not realising how far north she was to be stationed, or the distance to the Rockies. She originally intended her stay in Alberta to be a one-year adventure.