Hours and Admission

Regular Building Hours

Please take note of upcoming closures below.

Exhibition galleries

Monday, and Wednesday through Friday, from 9:30 AM to 4:45 PM
Tuesday from 9:30 AM to 7:45 PM (galleries open at 12:00 PM the second Tuesday of the month)
Saturday from 10:00 AM to 3:00 PM

Please note that the last admission for exhibition visitors will be 45 minutes prior to closing.

Library

Monday, and Wednesday through Friday, from 9:30 AM to 4:45 PM
Tuesday from 9:30 AM to 7:45 PM (the library opens at 12:00 PM the second Tuesday of the month)
Saturday from 10:00 AM to 3:00 PM

Staff retrieves materials up to 45 minutes before the library closes. Reading room closes 15 minutes before the library.

An advance appointment is strongly encouraged for all researchers. Please log-in to your Portal1791 account to select your preferred visit dates.

Upcoming Closures

The MHS is closed Friday, 4 July through Saturday, 5 July, for Independence Day weekend.
The MHS is closed Saturday, 30 August through Monday, 1 September, in observance of Labor Day.
The MHS is closed on Monday, 13 October, in observance of Columbus/Indigenous Peoples' Day
The MHS is closed on Tuesday, 11 November, in observance of Veterans Day.
The MHS is closed Thursday, 27 November through Saturday, 29 November, for Thanksgiving.

Admission

The MHS is free and open to the public. All ages are welcome in the galleries; library readers must be at least 16 years of age or accompanied by an adult.