Barron Trump Time Traveling Conspiracy Theory refers to a series of coincidences between the literary works of Ingersoll Lockwood and modern politics, particularly involving the Lockwood character "Baron Trump" and United States President Donald Trump's youngest son Baron Trump.
The earliest mention of the conspiracy theory was published by an anonymous 4chan user on July 13th, 2017. This post includes the following pieces of information about author Ingersoll Lockwood, who died in 1819.[1][2]
He wrote the following books: a) 1890's The Travels and Adventures of Little Baron Trump and his Wonderful Dog Bulgar
b) 1893's Baron Trump's Marvellous Underground Journey
c) 1896's 1900: Or, the Last President
Additionally, the stories include the coincidences that Trump's mentor is a man named "Don," "the master of all masters," who guides him through Russia.