1937 was a year of transition for Fred Noonan, whose reputation as an expert navigator, along with his role in the development of commercial airline navigation, had already earned him a place in aviation history. The tall, very thin, dark auburn-haired and blue-eyed 43-year-old navigator was living in Los Angeles. He resigned from Pan Am because he felt he had risen through the ranks as far as he could as a navigator, and he had an interest in starting a navigation school. In March, he divorced his wife Josephine in Ciudad Juárez, Mexico. Two weeks later, he married Mary Beatrice Martinelli (born Passadori) of Oakland, California. Noonan was rumored to be a heavy drinker. That was fairly common during this era and there is no contemporary evidence Noonan was an alcoholic, although decades later, a few writers and others made some hearsay claims that he was.