It's hard to picture what American presidents were like before they left their marks on domestic and foreign policy.
But we've collected old photos of US presidents to give a little taste of who they once were.
Naturally, not every president is on the list since photography wasn't widely used during the United States' earlier history.
The photos are listed in reverse chronological order, starting with current US President Donald Trump.
US President Donald Trump as a child.
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The photo caption reads: "Who knew this innocent kid would grow into a monster? #TBT #Trump"
Barack Obama with his grandparents, Stanley Armour Dunham and Madelyn Dunham, in New York in the 1980s.
George W. Bush sits between his parents George H. W. Bush and Barbara Bush in Rye, NY, 1955.
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