Question: Do you have any suggestions for researching my 18th century ancestors in Portsmouth, New Hampshire?
Answer: NEHGS offers published histories of Portsmouth on the 5th floor. For primary sources you can examine Portsmouth vital records on microfilm, and you may want to examine Rockingham County Probates and Deeds for Portsmouth pre-1771. At NEHGS we also have a typescript collection by Agnes Bartlett on microfilm. This collection is simply called Portsmouth Family Records. It is on three rolls of 35mm microfilm located on the 4th floor at NEHGS. The call number for this collection is F44.P8 P67.