"In 1891, after working as a barber for six years, Friedrich – by now calling himself Frederick Trump – decided to move west to Seattle, Washington
Washington had only recently become a state, having joined the Union in 1889. Frederick poured his life savings into buying a small restaurant called the Poodle Dog, which operated as a brothel and offered "rooms for ladies", which was slang for prostitution. Trump changed its name to the Dairy Restaurant but kept its original function, which was described by Blair as the provision of "food, booze and easily available sex". Seattle is pictured here in 1884, seven years before Frederick arrived."
https://www.lovemoney.com/galleries/134156/frederick-trump-the-life-and-wealth-of-donald-trumps-german-grandfather?page=7