Thomas Winthrop Streeter Sr. (July 20, 1883 – June 12, 1965) was a book collector whose collection of Americana was considered one of the most important of its kind.

[2] He was the son of Frank Sherwin and Lillian Carpenter Streeter, and he was born in Concord, New Hampshire on July 20, 1883.

[4][2] Streeter was President of the Bibliographical Society of America in 1942-1943.

California Historical Society; council, Grolier Club, trustee and treasurer of the New York Historical Society, and president, American Antiquarian Society.

[5] He died in Morristown, New Jersey, on June 12, 1965, and was buried in Peterborough, New Hampshire.