ACS Faculty & Staff

Mrs. Mata is completing her first year as ACS principal for the school year 2021-2022. She has been part of the ACS Family since 2012 serving as secretary, School Board President, and an active parent. She holds a Bachelor of Science degree in Chemistry from Angelo State University and is pursuing a Masters in Educational Leadership. Mrs. Mata and her husband, Deacon Marc, have five children. Ann Marie, Sarah Elizabeth, and John Marc are all graduates of ACS, Matthew James is in 8th grade at ACS, and Catherine Grace is in 2nd grade. They are members of St. Mary’s Church. It is a blessing for Mrs. Mata to share her faith both personally and professionally.

Ms. Kelley - ACS as Director of Marketing and Recruitment. Bachelor of Arts - Political Science/History; Masters of Business Administration - Human Resources. Ms. Kelley's son Liam is an ACS 4th grader. They are parishioners at Holy Angels Catholic Church. They spend their free time visiting museums around town, geocaching and hiking with their dog Bolt.

Mrs. Baumann, also known as Mrs. B, has been at ACS for many years. She has two bachelor degrees in child education and youth counseling. Her two sons Logan (7th) and Luke (6th) are ACS Eagles. They are members of Holy Angels parish.

Ms. Billingsley is a San Angelo native and a graduate of Angelo State University and has several years of experience teaching at SAISD. She completed her first year at ACS as our kindergarten teacher in 2022-23 and is moving to middle school ELA for the 2023-24 school year. She has two children, Brady (13) and Claire (10). In her free time, Ms. Billingsley enjoys exercising, teaching, and being with her family.

Ms. Brown, ACS 1st grade teacher, is a recent graduate of Angelo State University. In her spare time, she enjoys spending time with her friends and family.

Mrs. Colin will begin her 4th year at ACS in the fall of 2022. She is our 3K teacher, as well as middle school Spanish. She has a Bachelor of Arts in Psychology. She is also a certified facilitator for Abriendo Puertas, Community Health Promoter and Member of Vision y Compromiso. Mrs.Colin and her husband have three children, a daughter, Sheccid, who recently graduated from ACS, Didier, a 7th grader and daughter Irais, an ACS 4th grader. They are members of Sacred Heart Cathedral. In her spare time she stays busy as a volunteer with the Crisis Intervention Unit, Little Company of Mary, and is an advocate for families and children.

Mrs. Hasty has been at ACS for 36 years. She is a member of the Holy Angels parish. Her daughter Jessica is an ACS alumna and her grandson Jaxon will be attending ACS this fall. Her family recently welcomed granddaughter Jillian Rose. Mrs. Hasty's favorite thing about ACS is going to Mass with her students. She loves bringing God, Jesus and the Holy Spirit into all aspects of the school. day.

Mr. Hernandez has been the ACS science teacher for 14 years. He is a graduate of Angelo State University with a Bachelor of Arts in Elementary Education with a minor in Biology. Mr. Hernandez is our faculty sponsor for the ACS Robotics Club. He has been married to his high school sweetheart for 31 years and has two children who live in the Houston area. He is a member of St. Joseph Catholic Church. Some of his favorite past time activities include watching sports and playing a round of golf once in awhile.

Mrs. Schroeder has been at ACS for 15 years, after previously teaching in the public school system. She taught 3rd grade at ACS for ten years and has been over middle school mathematics for the last five. Mrs. Schroeder and her husband are members of Christoval Baptist Church where she is active in Women's Ministry , VBS, and a team leader on the church finance team. She has two children, Grady, who will forever be 31 and Preslie who is a horse breeder, trainer and professional barrel racer. She and her husband also have two dogs Hoot and Heidi, and two cats Missy and Snowflake. Her past time activities include working in her yard and kayaking on the South Concho River.

Deacon Zimmerman grew up in Arizona and attended Our Lady of Sorrows Catholic School from kindergarten through 8th grade. He is a graduate of the University of Arizona with a Bachelor's of Science in Operations Management and worked in retail management for many years prior to teaching. He received his teaching certification through Angelo State University and previously taught at ACS from 1996-2006. He was the Religion Education Coordinator at the Cathedral of the Sacred Heart prior to returning to ACS in 2020. Deacon is happy to be back at ACS and sharing his life skills and faith with our third graders.

Ms. Sallie Maurine Ulmer is the ACS 2023-2024 Kindergarten Teacher. She is very happy to be able to teach Jesus to children at ACS. Ms. Ulmer attended Holy Name Catholic School in San Antonio from 3rd through 8th Grade, where she learned to sing in her class choir. Her most recent Catholic choir training and experience is from Saint Mary's Catholic Church in Temple, Texas. She loves to sing in Catholic choir. Ms. Ulmer has four children: Three girls and one boy. Her Bachelor of Arts in English Language and Literature is from Southern New Hampshire University, and she has many university hours from Southern New Hampshire University, The University of Texas at San Antonio, Southern Methodist University, Vermont College, and Warnborough College. Ms. Ulmer believes very much that all life is to be loved, as taught by Jesus Christ. She devotes her life to being a model of Catholicism, health, safety, and answering her calling to paint images of trees to help God's Holy People further purify away from wrongness. She will be singing in choir at Holy Angels Catholic Church and is a practicing Marian and Franciscan.

Coach Coronado began his first year at ACS in the fall of 2023. He will graduate from Angelo State University in December 2023. He is our PE Teacher and Athletics Coach.