Administration & Leadership Team

  • Administrators


    Assistant Principal

    David Casco joined Dallas Independent School District in 2008. He joined Kleberg Elementary in 2014. His certification is EC-4 Bilingual and EC-12 Administration. He started his teaching career in early childhood and transitioned into teaching 5th grade science. 

    Mr. Casco graduated from South Garland High School and received his Bachelor of Arts in Criminal Justice/Criminology from the University of Texas at Arlington. He pursued his Master of Science in Education with a focus on Administration at Concordia University.

    David Casco - Assistant Principal -
    Roberto Guzman
    Assistant Principal

    Roberto Guzman started working with Canutillo ISD  for 10 years. While working with the school district, he served as a Transportation Clerk, Special Education Assistant, and Physical Education Teacher. While working for CISD, he attended and graduated from University of Phoenix with a Bachelor of Science in Management. He also has a Masters in Business Administration and received his Mid-Management (Principal Certification) from Lamar University.

    Mr. Guzman began his teaching career at Dallas ISD at Albert Sidney Johnston in 2004, teaching K-4 bilingual.  He has worked in Irving ISD and Mesquite ISD.  Mr. Guzman has been working in Public Education for 28 years.

    His ambition is to help his school become an exemplary model campus in which all involved grow, continually learn, and expect the best from each other.  He also believes that in most instances, people are willing to do what it takes if they are asked and feel empowered to do it.


    Roberto Guzman-

  • Instructional Support

    Reading Interventionist

    Vanessa Usrey graduated in Fall of 2013 with a BA in Science-Interdisciplinary Studies at Texas A&M University-Commerce. Later, she went on to earn her MA in Literacy Curriculum and Instruction at University of Texas at Arlington. Her certifications are Generalist (EC-6), ESL (EC-12), Reading Specialist (EC-12), and Master Reader.

    Ms. Usrey joined Dallas Independent School District in Spring of 2013. Kleberg Elementary has been her only school since her educational career started in 2013. She began teaching 5th grade for two years and was the Gifted and Talented teacher for three years.  She is currently our Reading, Writing, & Social Studies Instructional Coach.

    Ms. Usrey is passionate about effective teaching strategies and committed to every student’s education by maintaining a current knowledge in the field. She hopes to motive and inspire our students to be life-long learners. As Dr. Seuss once said, “The more you read the more things you know. The more that you learn the more places you’ll go.”

    Vanessa Usrey-

  • Counselor

    Shaniquia Bethany began her career in education in 2013 with Garland ISD as a Middle School English teacher. She taught 7th grade English for one year and 8th grade English for three and a half years. After receiving her Master’s Degree in School Counseling, she  joined Dallas Independent School District as a School Counselor at Adelle Turner Elementary School in 2019. She served as a School Counselor there for three years and joined Kleberg Elementary in 2022.

    Ms. Shaniquia Bethany graduated from Skyline High School in Dallas, Texas. After graduating from High School, she received her Bachelor’s degree from Texas Southern University in Houston, Texas.  She was the first in her family to graduate from college. She later decided on continuing her education towards becoming a School Counselor. Ms. Bethany earned her Master’s degree in School Counseling from Lamar University in Beaumont, Texas.

    Ms. Bethany has a passion and dedication for student success, for implementing several positive school-based initiatives for students, and for serving as a role model and leader for students and staff members. Her work ethic and commitment to children is exceptional. She is sure to have an open door for any student, parent and teacher that needs her. Most of all, Ms. Bethany is always positive and shows everyone that she cares unconditionally, and she is honored to share those experiences with the students, teachers, and families at Kleberg Elementary. By helping with SEL support, she will inspire teachers to find new and better ways of building relationships with the students as well as support parents with S.E.L. strategies that may be useful at home.

    Shaniquia Bethany 



    Krystal Robertson joined Dallas Independent School District in 1999. Her career began at John Ireland Elementary where she taught 2nd grade and received recognition.  She has also taught 2nd grade at Amelia Earhart Learning Center and served as a grade level chairperson.  She was bestowed the honor of Teacher of the Year at Amelia Earhart Learning Center. For the last nine years, she has taught Kindergarten, 1st, 2nd, and 4th grade at Sidney Lanier Vanguard for the Expressive Arts.  It is there where she was a Team Leader and an AVID Site Team Member.

    Ms. Robertson is a native of New Orleans, La.  She graduated from Nicholls State University in Thibodaux, La. with a Bachelor of General Studies.  She received a Masters of Arts degree in School Counseling from Amberton University.

    Ms. Robertson’s desire to become a school counselor stems from wanting to help students achieve academically, socially, and emotionally.  She believes that all students can learn and succeed with proper guidance,

    She is privileged to be a part of Kleberg Elementary and working with teachers, parents, and students as a community to enhance the learning environment.  She looks forward to helping students become college and career ready.

    Krystal Robertson-