William Gamble, Irish-born American general (died 1866)

William Gamble was a civil engineer and a United States Army cavalry officer. He served during the Second Seminole War, and fought for the Union during the American Civil War. He commanded one of two brigades in Brigadier General John Buford's Division of Cavalry, in which he played an important role in defending Union positions during the first day of the Battle of Gettysburg.

January 1 is the first day of the calendar year in the Gregorian Calendar; 364 days remain until the end of the year. This day is also known as New Year's Day since the day marks the beginning of the year.