We will be closed if the Twin Cities metro area is under a Winter Storm Warning or a Particularly Dangerous Situation (PDS) Tornado Watch.
Wednesdays 10 am - 4 pm
Thursdays 10 am - 8 pm
Saturdays 10 am - 4 pm
Days Closed in 2018
Wednesday, July 4, 2018
Thursday, November 22, 2018
Wednesday, December 26, 2018
We WILL be open the Saturdays before Memorial Day, July 4th, and Labor Day!
We are closed if volunteers are not available.
The William J. Hoffman Library and Research Center (LRC) is located in Suite 100 at 1385 Mendota Heights Road, Mendota Heights, Minnesota
. It is one of the top research facilities in the Midwest. Parking is free. The above link will take you to a map or you can see a map at the bottom of the page.
Library admission is free to MGS, branch, and affiliate members; non-members are asked to pay a $10 day-use fee.
Volunteers are needed to staff the library. Duties include opening and closing the library, answering the phone, and helping walk-in patrons find the materials they want. New volunteers are paired with an experienced volunteer to learn the ropes. No experience is necessary. Please consider regularly giving a few hours each month. Check the Volunteer Calendar. Thanks! We can't do it without you!
Library visitor information
The collection is the property of MGS, affiliates, and branches. It consists of over 30,000 books, periodicals and other items to help researchers.
Researchers are asked to register at the reception desk when arriving at the LRC and store briefcases and bags in lockers provided.
There is a lunchroom equipped with a refrigerator and microwave for the use of LRC patrons. A copy machine is provided; there is a minimal charge for copies.
The collection represents numerous nationalities and countries from Minnesota, the United States, and around the world.
The research area has state of the art computers, Internet and wireless access, microfiche and microfilm readers and printers.
There is a large variety of genealogical data installed on the library’s computers. The LRC has a vast collection of maps from around the world. Access to Ancestry and GenLines is provided at the LRC.