The Hawaiian Mission Children's Society, a nonprofit educational institution and genealogical society, exists to promote an understanding of the social history of nineteenth-century Hawai‘i and its critical role in the formation of modern Hawai‘i.
The Society operates the Hawaiian Mission Houses Historic Site and Archives, comprised of three historic houses, and a research archives with reading room. The Society also compiles the genealogical records of the American Protestant missionaries in Hawai‘i and promotes the participation of missionary descendants in the Site's activities.
Through the Site and Archives, the Society collects and preserves the documents, artifacts, and other records of the "missionary period" of Hawai‘i's history (1820-1863); makes these collections available for research and educational purposes; and interprets the historic site and collections to reflect the social history of nineteenth century Hawai‘i and America. Thus, the Society offers residents and visitors to the islands direct access to the people, ideas, and forces that helped to shape Hawai‘i.