The reclusive Mellon was identified as the source of the funds in a Saturday report by The New York Times.

President Trump announced this week that “a friend” who “loves the military and loves the country” – but who didn’t want to be identified – was giving the money.

Trump referenced the donation en route to Asia Friday night, calling the request for anonymity “pretty unusual in the world I come from.”

Mellon, 83, is the grandson of industrialist and Treasury Secretary Andrew Mellon, and is believed to be worth $14 billion.

The White House declined to comment and referred questions to the Department of War and the Treasury Department, which did not immediately respond to The Post’s request for comment.