Elizabeth Christ Trump was a German-American businesswoman and the paternal grandmother of Donald Trump, the 45th president of the United States. She married Frederick Trump in 1902. They had three children, Fred, John, and Elizabeth. Her husband died in 1918, requiring the 37-year-old widow to manage their properties. She co-founded the real estate development company E. Trump & Son with her son Fred, the father of Donald Trump.

Frederick Trump was a German-born American barber and businessman. He was the patriarch of the Trump family and the paternal grandfather of Donald Trump, the 45th president of the United States.