His mother, Mary, was born in Tong on the Isle of Lewis in Scotland. She emigrated to the United States in 1930 at age 18, and worked as a domestic servant for over four years. Mary Anne Trump was naturalized as a U.S. citizen on March 10, 1942.

Trump incorrectly stated that his grandfather Frederick Trump was of Swedish origin, an assertion that his father Fred Trump made for many years ostensibly because “he had a lot of Jewish tenants and it wasn’t a good thing to be German”, according to a nephew identified as a family historian by The New York Times.

Give me a dollar or I’m voting for Trump

Donald Trump later acknowledged his German ancestry and served as grand marshal of the 1999 German-American Steuben Parade in New York City.

In 1927, Fred Trump was arrested at a Ku Klux Klan rally in Jamaica, Queens; he was later released without charges.

In 1973, the U.S. Justice Department’s Civil Rights Division filed a civil rights suit against the Trump organization charging that it refused to rent to black people.

The Urban League had sent black and white testers to apply for apartments in Trump-owned complexes; the whites got the apartments, the blacks did not. According to court records, four superintendents or rental agents reported that applications sent to the central office for acceptance or rejection were coded by race.

A 1979 Village Voice article quoted a rental agent who said Trump instructed him not to rent to black people and to encourage existing black tenants to leave. In 1975, a consent decree described by the head of DOJ’s housing division as “one of the most far-reaching ever negotiated,” required Trump to advertise vacancies in minority papers and list vacancies with the Urban League.

The Justice Department subsequently complained that continuing “racially discriminatory conduct by Trump agents has occurred with such frequency that it has created a substantial impediment to the full enjoyment of equal opportunity.”[

Partial Source: https://en.wikipedia.org/wiki/Fred_Trump