Barron Trump

Barron is the only son of Donald and Melania Trump

The theory about Donald Trump stems from rediscovered drawings by Prussian-born artist Charles Dellschau

Social media has seen the hashtag '#sendbarron' trending as the US war with Iran grinds on

Melania's appearance on the The Mommy Helper Show in 2011 is being talked about

His brother called him up to ask about it

Donald Trump's six-foot-eight son is worth $150 million

The youngest of the Trump family spent much of his childhood out of the public eye