The first meeting of the Thiensville-Mequon (T-M) Rotary Club was held July 27, 1937, admitted to Rotary International on August 13, 1937, with the charter being officially presented on September 21, 1937.

Charter Members 
Rotary Club of Thiensville-Mequon, Wisconsin, USA
Rotary International Club Number 2763, District 6270
Edwin Wiese (President) Fred Kirsten
Martin Blank (President-Elect) Teb Liebscher
George Kroeger (Secretary) Andrew Maus
Oscar Bublitz (Treasurer) Eugene Milbrath
Albert Gilbert (Director) Herbert Nieman
A. C. Carthaus (Director) John Nieman
J. O. Carbys (Director) Edwin Radke
Walter Bublitz Erwin Riemer
Mike Eberhardt Harry C. Steffen
Raymond Gierach E. C. Wolf