The John and Priscilla Alden Family Sites is a National Historic Landmark consisting of two separate properties in Duxbury, Massachusetts.

Alden and his relationship with Priscilla Mullins were memorialized by Henry Wadsworth Longfellow in The Courtship of Miles Standish, a fictionalized narrative poem that made the story a piece of American folklore.

He located and excavated a granite foundation, 38 by 10.5 feet (11.6 m × 3.2 m) in size, with evidence of a deep cellar hole underneath the western end.

[3] New fieldwork and a reinterpretation of Robbins' work by Craig Chartier suggest that the foundation might be an addition to an older 20 by 20 feet (6.1 m × 6.1 m) structure which was earthfast (built on wooden posts set in the ground), a building method known from other Plymouth Colony sites.

Family tradition held that the house was built in 1653 as the second home of John and Priscilla Alden, although the original building may have been as early as 1630.