Phone: 830-990-9551


Degrees and Certifications:

Bachelor of Science - Interdisciplinary Studies Master of Education - Educational Psychology

Mrs. Tommi Seidenberger

Welcome to GCHS!

 My name is Tommi Seidenberger and I'm the Lead Teacher/Counselor here at Gillespie County High School.   I graduated from Texas A&M University with my Bachelors degree in Interdisciplinary Studies and my Masters degree in Educational Psychology.  I have over 20 years of experience in public education as a Teacher, Counselor, and a Behavior Specialist.  

I am excited to be a part of GCHS and help our students achieve his/her goals and graduate with a high school diploma.  We work on academic goals to graduate, as well as having a plan for after high school - entering the workforce, going to a trades school, community college, 4 year college or to the military.  Our students will get many opportunities for career planning and job prep!  

Outside of school, I am busy being a wife and a mom to my 3 kids.  I feel very blessed to be a part of FISD and our wonderful Fredericksurg community.  We welcome community members to come by and learn more about our program here at GCHS.