Mequon-Thiensville Historical Society

A Tax Exempt 501 (c)(3) Non-Profit Organization Since 1988

216 Green Bay Road, Ste 102  Thiensville, WI  53092

Tele:  262-242-3107     Email: 

About Us

Marketing Volunteer Opportunities

  • Newsletter Coordinator
  • Calendar Project Coordinator
  • Social Media Coordinator

I love uncovering mysteries and learning about people and their families

-MTHS Archival Volunteer

Archival Volunteer Opportunities

  • Article Clipping
  • Filing
  • Data Entry

Join and Support

One person can’t do everything to support the Society, but each of us can do something.  For as little at $15, you can become a valued member of the Society and receive our quarterly newsletter and calendar filled with great pictures from our local history.

Volunteer Opportunities

MTHS is in the news! See the links below:


MTHS in the news

  • Follow the progress as we restore our 1839 Isham Day House to it's historic use as the Mequon River Post Office.
  • Mark your calendars for our July 30th celebration of the 60th anniversary of the City of Mequon at the historic Nieman family home on Cedarburg Road.

Other Volunteer Opportunities

  • Accounting
  • Special Events Volunteer
  • Fundraising Committee

MTHS provides resources and educational services to the citizens of Mequon and Thiensville in an effort to inspire an appreciation for our rich local history.  We achieve this through the preservation of archives as well as adult and childhood history education programs and events.