In 1949, J.B. Lippincott of Philadelphia published The Story Of The Trapp Family Singers; this book, by Maria Augusta Von Trapp, was later republished as The Sound Of Music, which is also the title song from the Rodgers and Hammerstein musical and film.
Austrian orphan Maria Augusta Kutschera was set to become a nun when, in 1926, she was sent to the home of the widowed Baron von Trapp to tutor his daughter, Maria. On November 26, 1927 they married; he was 47, she was 22, and she became stepmother to Maria and her nine siblings.
The Baron made the big mistake of putting all his eggs in one basket, and lost most of his money when his bank failed, and the already musical family became professional singers. In 1938, when Adolf Hitler annexed his native Austria, the staunchly anti-Nazi Baron fled the country with his family, leaving behind everything, and immigrated to the United States.
As if often the case with plays, films and TV dramatizations, a number of alterations were made to the biographical record, but The Sound Of Music is entertainment rather than education. The title song was introduced in the 1959 stage musical by Mary Martin, and sung in the 1965 film by Julie Andrews.