The Warrens then moved to Windsor for two years. A two year stint in Indonesia was the next adventure. Arnold worked at the Indonesian Aviation Academy, but women were not permitted to work as flight instructors. They returned to Toronto once again, working in aviation. After retiring in 1973 they continued flying, often to their summer home on the Magdalen Islands in the Gulf of Saint Lawrence. The Warrens later moved to Colborne (where Arnold had grown up) and were active in the community with organizations such as Rotary, Inner Wheel, Second Helpings and schools.

At the end of the war, Milstead returned to Toronto and Baker Field. She worked for Leavens Brothers Air Services as a flight instructor where she met Arnold Warren whom she later married. In 1947 she and Arnold started teaching for Nickel Belt Airways in Sudbury. Her days as one of Canada's first female licensed bush pilot also began there. Recent research indicates that Warren was most likely Canada's first woman bush pilot.