Harold Avington Throckmorton (April 12, 1897 â November 5, 1973) was an American tennis player in the early 20th century.
He was born on April 12, 1897, in Hackensack, New Jersey.
He played intercollegiate tennis for Princeton University. He was champion of the state of New Jersey. In 1917 he won the men's doubles titles at the U.S. National Championships with Fred Alexander.
In 1918, he served in the artillery in the United States Army. After the war, he became a businessman. He died in 1973. He left $2,500 () for the care of his Irish terrier.