High School

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Monica Waggoner


I am absolutely thrilled to accept this position. With the incredible momentum that our school leadership has already established, I’m eager to build upon this foundation and help take G-PHS to new heights beginning next school year. 

I believe that educational leadership requires a servant heart tempered with the courage in one’s convictions. This is what I strive to share with students and staff that I work with.

When I am not working, I enjoy spending time with my two teenage children and my husband. We’re a very active family that enjoys hunting, fishing, birding, running, watching our kids in their sports, playing some soccer on the beach and (when we can get back to Houston) catching an Astros game.






Gus Barrera


I am extremely excited to begin a second year with the Wildcat family.  This will be my 20th year in education. I was previously a teacher and a coach in Robstown. I also served as an assistant principal at Mathis High School before becoming the Ben Bolt - Palito Blanco high school principal for three school years. It is truly an honor to have the opportunity to serve the students, staff, and community of Gregory Portland. Together we will work every day to ensure student success through the use of research-based best practices, student engagement, and data-driven instruction. 






Brittany Brown



I am excited to serve GPISD as an Assistant Principal at GP High School. I attended Texas A&M University Kingsville where I obtained a Bachelor’s degree in Human Sciences. I also attended Our Lady Of the Lake University in San Antonio Texas where I obtained a Master’s in Education School Counseling. In my years of education, I have been a teacher and coach, as well a high school counselor and a high school assistant principal. I hope to use my experiences, knowledge, data driven and innovate outlook to push the students and staff of GP to continue to reach excellence.






Chandler Davis



I am excited about becoming a Wildcat for the upcoming school year! I will be entering my nineteenth year in education. I have taught math and social studies and coached football and basketball at the middle and high school levels. I am a two-time teacher of the year. In 2021-2022, I was selected for the Frank Kemerer Award for the top social studies teacher in the state. I was also selected as the TABC Assistant Coach of the Year in 2016-2017. I received my bachelor's from Texas Tech, and my master's from Texas A&M University Corpus Christi. I believe in servant leadership, data-driven instruction, and developing sound curriculum to ensure the success of our students. Let's have a great school year!






Darius Robertson



I am incredibly excited to become a Wildcat! I have been an educator for ten years. Much of my experience has been in Title I schools, including teaching at the elementary and middle school levels and serving as an assistant principal at the secondary level. I am committed to the continuous improvement of instruction and my goal is to encourage, support, and motivate teachers. I am also pursuing a Doctor of Education (Ed.D.) in Organizational Leadership with an emphasis in K-12 Leadership from Grand Canyon University.