Check out these 19th century books written by Ingersoll Lockwood.
"Baron Trump's Marvelous Underground Journey" which talks about a boy (Baron) that lived in "Castle Trump" whose mentors name is Don.
"1900; The Last President" which talks about an underdog candidate from 5th Ave in NYC who ended up winning the Presidency. He also named
"Lafe Pence" as his Secretary of Agriculture.
Don't forget the "End Of The World" episode of the old TV series "Trackdown" which had a character named Trump trying to sell the idea of a wall
around the town to stop deadly meteors.