Frederick Trump was a German–American businessman and the patriarch of the Trump family. Born in Kallstadt, in the Kingdom of Bavaria, he immigrated to the United States at the age of 16 and started working as a barber. Several years later, in 1891, he moved to the Northwest. He made his fortune by operating a restaurant and a brothel in Canada. He later returned to Kallstadt and married Elisabeth Christ. Bavarian authorities accused him of emigrating when he was too young to avoid fulfilling his military service, so he lost his Bavarian citizenship; he and his family returned to the United States. He became a U.S. citizen in 1892.
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