Historic County Information
Hull was originally part of Suffolk County, and when the southern part of the county was set off as Norfolk County in 1793, it included the towns of Hull and Hingham. In 1803 those towns opted out of Norfolk County and became part of Plymouth County
Reference: https://www.sec.state.ma.us/cis/cisctlist/ctlistidx.htm
Reference: https://www.plymouthdeeds.org/home/pages/special-plan-collection