Campus Information
Year Open:
Bond Year:
School Mascot: Bears
School colors: Gold, Black
During his tenure at Northside ISD, Dr. Trimble was part of the inaugural administrative staff at Stevens High School and Brennan High School where he served as the assistant principal and vice principal, respectively.
Dr. Trimble attended Angelo State University where he earned his Bachelor of Science in Psychology/Criminal Justice and his Master of Education in School Administration. He earned his Ph.D. in Leadership Studies from Our Lady of the Lake University.
He believes quality education is a key component to success and looks forward to creating these opportunities at Brennan High School.
The Associate Principal also serves as the Campus Behavior Coordinator.
Also serves as the Campus Title IX Coordinator.
Mr. Ryan Brassell has been in education for over 25 years. He began his tenure in Mesquite ISD in the year 2000. While there he served in a number of roles prior to becoming an assistant principal at one of the local high schools within Mesquite ISD. Mr. Brassell came to Northside ISD in the 2022-2023 school year. He began as an assistant principal at Brennan High School before becoming the associate principal at Brennan.
Mr. Brassell grew up in the Pineywoods of northeast Texas near the Louisiana border. He attended Stephen F. Austin State University in Nacogdoches where he obtained his Bachelor's degree in Kinesiology with an endorsement in Special Education. While with Mesquite ISD, Mr. Brassell earned his Master's degree from the University of Texas A&M - Commerce (now East Texas A&M University).
Mr. Brassell is happily married to his wife Jodie and has 2 boys, Brayden and Asher and a daughter Madeline who resides in the Dallas area. Mr. Brassell is a lover of the outdoors from hunting, fly-fishing, camping, etc.
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Dr. Michelle CraigAcademic Dean
