post-war the société continued to grow and add to its collections to the extent that during the 1970s a new headquarters was built adjoining the pier road museum. in 1987 the société entered into an agreement with the states of jersey for its museums to be run by the jersey heritage trust, whilst retaining ownership of its collections. this enabled the société to concentrate on its core activities of research and publication. in 1990 the société also entered into a working partnership with the national trust for jersey which its members had helped to found in 1937, to develop a country life museum at hamptonne, st lawrence, a late medieval farm with manorial pretensions, the national trust purchasing the property, the société financing the restoration. presently, the société has approximately 2,000 members.