The Eastville Community Historical Society's mission is to preserve historic buildings and research, collect and disseminate information about the history of the Eastville area of Sag Harbor, NY, one of the earliest known working class communities composed of African Americans, Native Americans and European immigrants. The ECHS also seeks to discover and collect material that illustrates the settlement, development and progress of life in the Eastville area, both past and present, for the public to discover and enrich their understanding and experience of Sag Harbor life through this special Hamptons community.

The mission of the Sag Harbor Whaling & Historical museum is to preserve, interpret and promote the culture of Sag Harbor through its collection of historical objects related to the village’s whaling history, as well as the presentation of contemporary exhibits and events that reflect the culture of the village today and put Sag Harbor’s past and present into context.