Board & Staff
2025 Board and Staff Members
The Board
Dr. Margo Blevins
President
Richard Gruetzner
Vice President
Dr. Barbara Berthold
Secretary
Jon Todd "JT" Koenig
Treasurer
Janis Gonser
Board Member
Dr. Ralf Bendlin
Board Member
Kevin Klaus
Board Member
Ed Tovar
Board Member
Sean Herrity
Board Member
Eddie Wolsch
Board Member
Larry Deuser
Board Member
Anika Keswani
Board Member
Sabine McCalla
Board Member
Rebecca Rich-Wulfmeyer
Board Member
Lu Hollander
Board Member
The Staff
Christopher Markley
Executive Director
Constanze Heitkoetter
GIS Director
Doris Boerkei
Office Manager
Manuela Markley
Program Director
Ross von Seggern
Facilities Manager
Sigrid Keimling
Christmas Manager
The Teachers
Pearl Gardner
Teacher
Rina Lee
Teacher
Ines Mosley
Teacher
Meike Stranahan
Teacher
Hayley Derryberry
Teacher
Madelyn McCollough
Teacher
Josephine Sand
Teacher
Agnes Jackson
Teacher
Henrike Belz
Teacher
Rita Guihan
Teacher
Flavia Meterez
Teacher
Sigrid Scherber
Teacher
Birgitt Knobelspies
Teacher
Kiana Salazar
Teacher
Ally Becker
Teacher
Angela Schaal
Teacher
Honorary Members
Charles Locklin
Honorary Member
Sandra Dieckman
Honorary Member
President
Dr. Margo Blevins – president@germantexans.org
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Vice President
Richard Gruetzner – vp@germantexans.org
Secretary
Dr. Barbara Berthold – boardsecretary@germantexans.org
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Treasurer
Jon Todd "JT" Koenig
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Executive Director
Christopher Markley – director@germantexans.org
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Office Manager
Doris Boerkei – office@germantexans.org
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Program Director & Social Media
Manuela Markley – programs@germantexans.org​
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Pre-K Director
Constanze Heitkoetter – constanze.heitkoetter@germantexans.org
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Board of Directors
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Dr. Margo Blevins
Richard Gruetzner
Barbara Berthold
Jon Todd "JT" Koenig
Janis Gonser
Dr. Ralf Bedlin
Kevin Klaus
​Eddie Wolsch
Edward Kober Tovar
Sabine McCalla
Sean Herrity
Rebecca Rich-Wulfmeyer
Anika Keswani
Lu Hollander
Dr. Larry Deuser
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Advisory Board
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Martin Jungowski
Hans Boas
Rodney Koenig
Karen Haschke
Jim Kearney
Rosemary Lindley
Canan Kaba
Van Massirer
Helgard Suhr-Hollis
Kristi Lee-Norden
Franziska Jackson
Allen Barnes
Bruce Bower
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