Each first Wednesday of the month, the Mill Valley Historical Society invites a guest speaker to present a program about Mill Valley or southern Marin history. The series is know as First Wednesdays. Occasionally a guest will speak on a historical event that took place in Northern Marin (the history of Olompali) or San Francisco (the 1906 earthquake, or the Panama–Pacific International Exposition of 1915).
Some examples of guest speakers and their topics:
Local historian Barry Spitz talking about the history of the Dipsea Race
Railroad historian Richard Torney talking about the many ways the railroad has touched Mill Valley
Betty Goerke sharing her expertise on the coastal Miwoks and Chief Marin
Descendants of the Portuguese farmers from the 1800s sharing their families' histories in early Marin