Frank Zappa was born on December 21, 1940, in Baltimore, Maryland, United States. He was the son of Francis Vincent and Rose Francis Vincent Zappa. For most of his life, he was under the mistaken impression that he had been named exactly after his father, a Sicilian immigrant who was a high school teacher at the time of his son's birth, that he was "Francis Vincent Zappa, Jr." That was what he told interviewers, and it was extensively reported. It was only many years later that Zappa examined his birth certificate and discovered that, in fact, his first name was Frank, not Francis.
Zappa's mother, Rose Marie Colimore Zappa, was a former librarian and typist. During his early childhood, the family lived in Baltimore, Opa-Locka, FL, and Edgewood, MD. In December 1951, they moved to California when Zappa's father took a job teaching metallurgy at the Naval Post-Graduate School in Monterey.