The Board of Directors is elected by TDG membership and meets on a quarterly basis. Asterisked names represent members of the Executive Committee, which meets more frequently to conduct business between Board meetings.

Allen Sack
Co-Founder/Director Emeritus




Andrew Zimbalist *
President




Julie Sommer *
President-Elect

Donna Lopiano *
Past President




Wendy Pierpont *
Secretary




John Rosen *
Treasurer




Andre Vasquez *
Student Representative




Tammi Gaw
Member-at-Large




David Hughes
Member-at-Large




Dave Ridpath
Member-at-Large

Sandy Thatcher
Member-at-Large




Connee Zotos 
Member-at-Large