Liberty Farm is a National Historic Landmark at 116 Mower Street in Worcester, Massachusetts. Built c. 1810, it was the home for most of their married life of Abby Kelley Foster (1810–1887) and Stephen Symonds Foster (1809-1881), early vocal abolitionists and women's rights activists. The Fosters used their house as a shelter on the Underground Railroad, and famously refused to pay taxes on the property because Abby was unable to vote. The property, a private residence not open to the public, was designated a National Historic Landmark in 1974. In 2018 the building was sold off to a local family.