Jeanie Allan grew up in West Vancouver, with her parents and brother John. Her grandparents lived in West Vancouver in the early 1900s. Jeanie was educated at local schools, and graduated from Inglewood High School. As a teenager she was active in local events such as May Days, and belonged to the West Vancouver Girl Guide Company. Jeanie graduated as a nurse from Vancouver General Hospital in 1945. She married Albert Cox and they had two children, David and Eleanor.