Seguin   INDEPENDENT SCHOOL DISTRICT   exceptional students to exceptional citizens

AJB 2018 Teacher Of The Year

Sam Parrott


General Information
AJ Briesemeister Middle School
1616 W. Court 
Seguin, TX 78155
Phone: 830-401-8711
Fax: 830-379-0615

School Hours
School begins at 8:10 a.m.
School dismisses at 3:40 p.m.

Amber Gonzales
Welcome to the site of A.J. Briesemeister Middle School , home of the TOROS!    Otherwise known as Briese or AJB, we are a 6th, 7th and 8th grade campus.  The campus is ALL TEAM - where teamwork makes Briese work.  The entire staff works together to meet the needs of our students.  At AJB, we practice Safety, Respect, and Responsibility because AJB is the place to be...we love you, we love you, we love you!

A.J. Briesemeister Middle School opened its doors to students in 1973. Since that time, the school has gone through several renovations and has now entered the new millennium of education.


Alvin J. Briesemeister, affectionately known to those around him as "Mr.Briese," served the school children of Seguin for most of his adult life. He was first a teacher and coach, then a principal of the high school, assistant superintendent, and finally, superintendent of Seguin schools for 16 years. Briesemeister was born October 28, 1896, in Ottine, a son of the late Julius and Martha Louise Briesemeister. He received his teaching certification from Southwest Texas State College in 1915, his B.A. from that school in 1925, and his M.A. from the University of Texas at Austin in 1937. He served as a history teacher and coach in 1926 in Seguin public schools, and in 1941, he was named high school principal. In 1943, he was named principal and assistant superintendent, taking over the duties as superintendent in 1949.


Mr. Briesemeister was active in numerous professional organizations as well as many church and community affairs."Mr. Briese" announced his retirement to be effective July 1, 1965, but a tragic and untimely automobile accident on June 10, 1965, claimed his life and that of his wife.

2017-18 Bell Schedule

Please volunteer


Let me know if you're interested in volunteering and we'll figure out where we can best use your talents. or (830)379-0600
Important Documents
Amber Gonzales, Principal


This is my fifteenth year in education.  Prior to joining Seguin I.S.D. as principal of A.J. Briesemeister in October 2017, I was a Principal for Northside ISD in San Antonio.


I received my Bachelor of Arts degree in Interdisciplinary Studies from The University of Texas at San Antonio.  I also received my Masters of Arts degree in Education in the area of Reading Specialist as well as Certification for Administration from The University of Texas at San Antonio .


I have lived all over the world.  I was born on the island of Cyprus in Nicosia.  I have also lived in India, Brazil, Ecuador and Japan.  Stateside I have lived in Virginia and Texas.  I have been asked many times where I call home, I say “Texas”.    My husband and I have three grown children and learning how to enjoy the time having grown children affords us.


In my spare time I enjoy going to the movies and reading.  I am very excited about joining the Seguin I.S.D. family and I look forward to a great year.



Kristal Mata, Assistant Principal


My name is Kristal Mata Falcon, I am currently in my 5th year as an assistant principal at AJ Briesemeister Middle School.


I originally graduated from Texas State University in 2008 with a Bachelor’s Degree in Liberal Arts. I taught English Language Arts at Seguin High School for four years. I pursued my Master’s Degree in Educational Administration and graduated from Lamar University in 2012.


I am very happy to be working at AJB- the place to be- and I feel very blessed to be able to work with such wonderful educators and students.



Deandra Vega, Counselor


Greetings! I am a born and raised Seguinite and I am proud to be working in Seguin ISD. I have been in education for 11 years as a teacher and elementary counselor before moving to middle school.


Upon graduating from Seguin High School, I completed a Bachelor of Science degree in Interdisciplinary Studies from Texas State University-San Marcos. I have a Masters degree in School Counseling from Texas A&M-San Antonio.


If you have any questions, feel free to contact me via email or by phone.


Mrs. Vega

(830) 379-0600 ext. 24706.