A substantial proportion of the items held by the Museum were originally collected by the Society.
The present museum at the castle was fitted during mid 20th century, and around the same time the 18th-century staircase from St Mary Redcliffe's vicarage was installed in the Great Hall.
[5] The Society has published an annual journal, the Proceedings, since 1851 which contains scholarly papers on research into the history, archaeology and ecology of Somerset.
[7] Professor Mick Aston, well-known due to his involvement with the Time Team archaeology programmes on Channel 4, was a member and Past President of the Society,[8] and regularly contributed papers to the Proceedings.
[6] Robin Bush, the archivist and historian, was Chairman of the Somerset Archaeological and Natural History Society in 1983–84.