The oldest photo of a U.S. president is of John Quincy Adams.
On March 8 and 16 of 1843, former U.S. president and then-congressman John Quincy Adams trudged to the Washington, D.C., studio of Philip Haas to sit for a portrait of his likeness. Portraiture of wealthy and esteemed individuals was nothing new, but these particular visits involved the novel technology of the daguerreotype, an early form of photography in which the exposure of light on a copper plate coated with silver iodine and treated with a salt solution produced images that proved spellbounding to people of the era.
This wasn’t the first time the venerable congressman had posed for a photo: During a trip to Boston the previous September, he paid a visit to the studio of John Plumbe, though he struggled to stay awake during the hour-and-a-half session. Fortunately, the March 1843 experiences were more fruitful for both the sitter and photographer. Adams’ March 8 diary entry reflects his amazement of the process, which he described as “yet altogether incomprehensible to me… It would seem as easy to stamp a fixed portrait from the reflection of a mirror; but how wonderful would that reflection itself be, if we were not familiarised to it from childhood.” Returning the following week, Adams interrupted the session of fellow congressman Horace Everett to have his photo taken again. He later gave one of the resulting daguerreotypes to Everett, perhaps as a token of appreciation for allowing him to cut the line; it remained hidden from the public until being unearthed in the 1990s, and today sits in the National Portrait Gallery as the oldest surviving photo of a U.S. president.
It’s worth noting that Adams was not the first president to be photographed; that honor goes to William Henry Harrison, who sat for a daguerreotype shortly after his inauguration in March 1841, although that image has been lost to history. And as the Adams administration had been over for more than a decade by the time the former president posed for Haas, it is also not the oldest photo of a sitting U.S. president. That distinction belongs to James K. Polk, who posed for his piece of history in the White House in 1849.