Our Board of Trustees
Diane Carl
PTO Representative

Diane Carl has served the Keystone School in many roles including grade level annual fund rep, Girl Scout leader, robotics club mentor, upper school rep and currently, she is the PTO president. She helps to promote women owned businesses and advocates for women and girls.

Diane has a daughter, Sydney Hileman (Keystone class of 2019), and son, recently graduate Carl Hileman (Keystone class 2017). The family moved to San Antonio in 2006 from Atlanta, a Keystone family since 2007.

Diane has been a program director for teen communication and leadership programs presenting at a variety of non-profits and has volunteered for 20+ years with Girl Scouts in roles including trainer, advisor, strategy planning and national delegate.

Corporate work has included management consulting/technology field, training and development, recruiting and retail management. Diane earned her bachelor’s degree in speech communications from University of Georgia and is currently pursuing a modular program executive MBA from Emory University.

Living in the Monte Vista and Tobin Hill communities over the past 11 years, she loves being in the in-town live-work-play atmosphere. Diane values the inclusive and inviting nature of these growing areas and supporting Keystone as an active and vital participant organization in the surrounding communities.

Click on Names to View
Darryl Byrd
Chair
Diane Carl
PTO Representative
John Engates
Trustee
Michael Fischer
Trustee
Thomas M. Hart III
Trustee
Laura Johnson
Trustee
Pat Kalmans
Treasurer
Carla Katselnik
Trustee
Wasif Latif
Trustee
Laura O' Donnell
Trustee
Kumar Reddy
Trustee
Juliana Robledo
Trustee
Jeremy Shaw
Alumni Representative
Jay Srikanth
Vice Chair
Stephanie Stevens
Trustee
Hannah Steward
Faculty Representative
Tim Vu
Trustee
Craig Weber
Trustee
Amy Zesch
Secretary
Harold Zuflacht
Trustee