Visiting the Library

The Massachusetts Historical Society's library operates differently from most public or university libraries. While we strive to provide researchers with access to all our collections, our primary concern must be to preserve our unique materials, and for that reason we enforce strict security protocols. The pages in this section—What to Expect, What to Bring, and How to Prepare--will help you become familiar with our policies and procedures.

Library Hours

Mon., Wed. - Fri. 9:00 AM - 4:45 PM
Tues. 9:00 AM - 7:45 PM
Sat. 9:00 AM - 4:00 PM

Please see our events calendar for holidays and other closings.