At 17, RoseMaree Templeton began her lifelong journey with numerology and Pythagorean theory, studying under her grandmother, Hettie Templeton, Australia's foremost numerologist during the 1940s and 1950s. Hettie Templeton worked for years among children and adults. In 1940 she wrote Numbers and their Influence, which she updated in 1956 with A Philosophy of Numbers. She realised her methods were unorthodox, but wrote and taught in the certainty that her knowledge could help parents to better understand their children.