born in norway's third largest city trondheim, mykle was often sick as a child. his sickness forced him to stay indoors for most of his childhood. mykle got a business education from the norwegian school of economics (nhh) in bergen where he excelled in his studies. he had attended mercantile high school in trondheim (handelsgymnasiet) from which he graduated in 1935. soon after this he was offered a job as an assistant at his old school. after working diligently, he was offered a job as a principal at a similar school in kirkenes.