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U.S. immigration policies in the 19th century

Historical context of U.S. immigration policies during the 19th century, which allowed Friedrich Trump to enter the country

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Jan 30, 2026

What is the historical trend in the number of naturalized citizens serving in the U.S. House?

Across history the presence of has waxed and waned: a relative high in the late 19th century, a long 20th‑century decline tied to restrictive immigration and naturalization regimes, and a renewed—but ...

Jan 24, 2026

Which primary sources document Friedrich Trump’s movements between 1885 and his later U.S. residences (Seattle/Alaska)?

Primary contemporaneous documents that track ’s movements from 1885 through his U.S. residences include his 1885 passenger manifest entry arriving at , a administrative record and royal decree concern...