Daniel Waldo (September 10, 1762 – July 30, 1864)^[1] was an American clergyman. Born in Windham, Connecticut, Waldo served in the American Revolutionary War and later became a missionary and clergyman. In 1856, at the age of 94, Waldo was named Chaplain of the House of Representatives. Waldo's earliest ancestor Deacon Cornelius Waldo arrived to the American colonies from Ipswich, England around 1654.^[2]

It is recorded that Waldo was in good health during his service to the House; he was also one of seven Revolutionary War veterans who, having survived into the age of photography, were featured in the 1864 book The Last Men of the Revolution (which gives many more details of his life). He was purportedly the only person to have voted for both George Washington and Abraham Lincoln in presidential elections.^[3] Waldo died in Syracuse, New York at the advanced age of 101, of injuries sustained after falling down a flight of stairs, and he was given a memorial in the House itself.

• Reverend E.B. Hillard, The Last Men of the Revolution (1864), republished 1968 with additional notes by Wendell Garrett.

• "Father Waldo's America"