Our People
Leadership Team
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Thomas M. Mengler, J.D.
Chief Executive Officer
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Dianna Hopkins, MBA, CFRE
Chief Advancement Officer
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Marcus Felan, MBA
Chief Business Officer
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Cindy Glass
Office Manager
Education Team
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Noah Lawrence
Nature Education Director
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Sarah Berringer Bader
Farm Education Director
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Kathleen Hoover
Nature Education Coordinator
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Christina Foley
Farmers Market Coordinator & Education Administrator
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Vanessa Barnes
Farm Educator
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Shyann Martinez
Farm Manager
Conservation Team
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Kel Hoffman, PhD
Land Conservation Director
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Sarah Vergara
Research Scientist
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Tyler Hamilton
Land Steward
Facilities Team
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Lee Garteiser
Building & Grounds Director
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Eric Sharpe
Landscape & Maintenance Technician
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Ria Brown
Custodian
Development Team and Volunteer Services
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Brittany Whalen
Development Director
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Annie Briseño
Grant Manager
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Michele Guyer
Special Events Coordinator
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Jennifer Smith
Volunteer Coordinator
Park Rangers
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Cindy Butler
Ranger
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Pablo Martinez
Ranger
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Emily Norton
Ranger
Communications Team
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Brian Davenport
Communications Director
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Sydney Ward
Marketing Coordinator
Board of Directors
Desiree Whitney, President
Corbett Christie, Vice President
Jeremiah Leibowitz, Treasurer
Marilyn Tremper, Secretary
Staci Almager
Leslie Brown
Nancye Drukker
John Freud
John Leonard
Mark McCurley
Jonathan Piper
Jeff Schwarz
Joanne Williams
Emeritus
Our Emeritus status honors former board members whose leadership and service helped shape the direction and impact of our organization. Though no longer serving in an active governance role, these individuals remain an important part of our community. We also remember those included here in memoriam, recognizing their lasting contributions and the enduring influence of their dedication to our mission.
Carolyn Chipman Evans
Juanita Chipman
Brent Evans
Roger Hemminghaus
Steve Lewis
Jan Newton
John Brazil
Guy Chipman
Tom Frost, Jr.
Tim Hixon
Joan Kelleher
Interested in a career at The Cibolo Center for Conservation?
Our Cibolo Team is a passionate, dedicated group who believes in creating thriving land, people and communities.
job postings
internships
Turn your love for nature into experience.
We believe sustainability means caring for both the environment and the people who steward it. That’s why we invest in tomorrow’s environmental leaders. Apply for an internship at The Cibolo (18+) and gain hands-on professional experience in land management, horticulture, marketing, education, or environmental conservation. If you’re a high school or college student who is excited about sharing a love of nature with others, the Cibolo Internship Program may be a great fit for you!
We offer internships across several disciplines. If you’re interested in an area not listed, we encourage you to reach out and tell us how your interests and skills could contribute to our dynamic team.