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District Administrators

Glenbrook High School District 225 employs both licensed administrators (individuals filling positions that require licensure from the Illinois State Board of Education) and non-licensed administrators (individuals filling positions that do not require licensure). 

The day-to-day operations of the school district are overseen and managed by the Superintendent and a group of highly-qualified school administrators.  School administrators are responsible for:

  • Leading and overseeing the operations of one of more functional area of a school or district department;
  • Directly supervising and evaluating personnel;
  • Responsible for serving as a budget manager for a functional area; and
  • Responsible for ensuring compliance with local, state, and federal laws.

Executive Cabinet

Dr. Charles Johns

Superintendent
GBA

Dr. R.J. Gravel

Associate Superintendent
GBA

Dr. Barbara Georges

Principal
GBS

Jason Markey

Principal
GBN

Angelica Romano

Executive Director of Human Resources
GBA

Carol Smith

Executive Director of Communications
GBA

Brad Swanson

Assistant Superintendent for Administrative Services
GBA

Dr. Rosanne Williamson

Assistant Superintendent of Educational Services
GBA

District Administrators

Ryan Bretag

Director of Instructional Innovation
GBA

Lea Brianas

Benefits Manager
GBA

Ryan Manly

Technology Services Manager
GBA

Brian Murdy

Buildings & Grounds Manager
GBS

David Olson

Communications Manager
GBA

Dr. Jennifer Pearson

Director of Special Education
GBA

Dr. Kimberly Ptak

Director of Operations
GBA

Joel Reyes

Safety & Security Manager
GBS

Christina Salonikas

Communications Manager
GBA

Nicole Schramm

Fiscal Services Manager
GBA

Vicki Tarver-Andersen

Director of Business Services
GBA

Jennifer Zalatoris

Payroll Manager
GBA