Brownell Library maintains a genealogy section consisting primarily of works associated with the local area. These include:
- Little Compton Families: an 800-page genealogy that traces most of the early families that settled in Little Compton.
- Little Compton Wills: A 300-page collection of wills of Little Compton residents recorded prior to 1875.
- The library also holds other family genealogies which were moved from the Little Compton Historical Society so the public could have greater access to the material.