Sister Mary Therese Warden, O.P.

July 6, 1933April 28, 2021

Sr. Mary Therese Warden, O.P. (Maria Goretti) entered eternal life on Wednesday, April 28, 2021. Sr. Therese was born in Houston, TX, July 6, 1933, to the late William and Helen McNally Warden. She was predeceased by her siblings Rev. T. Patrick Warden, CSB, Margaret Omelchuck, and by her niece, Beth Omelchuck. She is survived by her brother, Rev. Daniel L. Warden, her brother-in-law, Al Omelchuck, and several nephews, nieces, great nieces, and cousins.

Sr. Therese felt great pride growing up in the historic Houston Heights and attending All Saints Catholic School, which provided a quality education and a foundation for her vocation to religious life. Following graduation from St. Agnes Academy in 1951, she entered the Dominican Sisters of Houston. She earned a B.A. in English and Spanish at Dominican College, Houston; an M.S. in Education and Mathematics at Texas Woman’s University in Denton, TX; an M.A. in Theology at Aquinas Institute of Theology in St. Louis, MO; and Certification in Accelerated Spanish from the University of Houston.

Sr. Therese served in education ministry at St. Anthony Cathedral School in Beaumont, TX. She co-established St. Mary’s School in Whittier, CA. She taught at St. Francis De Sales School in Riverside, CA; St. Charles School in Nederland, TX; and St. Francis De Sales School in Houston. She was Principal of Corpus Christi School in Houston. She also taught at Msgr. Kelly High School in Beaumont, TX; O’Connell High School in Galveston, TX; and St. Pius X High School in Houston.

As part of her justice ministry during the Iraq War, she represented the Houston Dominicans through a visit to that war-torn country to provide solace and financial aid to the poor and dispossessed. She also served the congregation through her ministry as Director of Formation, Chairperson of the General Council Steering Committee, the Planning/Implementing Goals Committee, and numerous other committees throughout the years.

Sr. Therese was gifted with an analytic mind and rich spiritual insights. She loved reading and traveling to European countries. Some of her favorite pastimes were doing crosswords and watching “Wheel of Fortune” and “Jeopardy.” Her students remember her for challenging them to: “Say what you mean and mean what you say.” She had an impact on many lives and will be greatly missed.

The Houston Dominicans would like to express their heartfelt gratitude to the CCVI community and St. Placidus Convent and staff for their loving care and support of Sr.Therese during her final years.

Visitation will be held on Sunday, May 2 at Earthman Bellaire from 1-2:30 p.m. Other services are private, due to COVID. Vigil Service on May 2 at 6:30 p.m. and Mass of Christian Burial on May 3 at 10:30 a.m. will be live-streamed In lieu of the usual remembrances, donations may be made to Dominican Sisters of Houston, 6501 Almeda Road, Houston, TX, 77021.


  • Visitation

    Sunday, May 2, 2021

  • Vigil Service

    Sunday, May 2, 2021


  • Mass of Christian Burial (Private)

    Monday, May 3, 2021



Sister Mary Therese Warden, O.P.

have a memory or condolence to add?

Jason Novak

May 2, 2021

I have so many wonderful memories of my colleague and friend. From the trivial moments when I helped her with her electronic grade book to the more exciting moments at Parsley Field she was always one I could have a real conversation with. RIP Therese, you are missed. My thoughts and condolences to the family and the Dominican Sisters of Houston for their loss.

Deborah Mosichuk

May 2, 2021

When I first came to St. Pius X I was "elected' treasurer of the local librarian group H.A.I.S.L.N.

Immediately I sought out Sr. Therese and made it plain that I had no idea what to do. She gladly helped me. She did such a great job of helping me that I was re-elected the following year!!!

That was Therese, if you're going to do something, do it thoroughly and completely.

I had to decline a third term!

Deborah Mosichuk

molly omelchuck

May 1, 2021

My Aunt Therese was a brave woman and smart as heck. Sometimes annoying how smart she was. She took on anyone with a question and usually provided the correct answer. If you didn't have a question, then it was, well, why not? An educator at heart.
(Oh, she taught me to brush my tongue - I didn't know that was a thing, the small things matter too)
Oh, back to bravery, she went on several epic camping trips with her sister Margaret and husband Al and their 6 young wild kiddos. At the end of the trips, she would say, I'm never doing this again. Yet, she did. Tenacious, adventurous and maybe a little nuts.
She will never be forgotten...
Molly Omelchuck (one of the six wild kiddos)

Angelica Harrell

May 1, 2021

Sister Therese was one of my favorite people and teachers. She challenged me to “say what you mean and mean what you say” in math and life. I was afraid to take her classes but she turned out to be a witty, kind woman behind that stern countenance and demanding expectations. She helped make me my best in school and life. May God rest her soul.

Raina James

April 30, 2021

Sr. Therese was the best math teacher I’ve ever had, with a quick wit I’ll never forget. I’ve been lucky enough to know other members of the Omelchuck family and realized later that is a hereditary trait.

St. Pius allowed dressing up for Halloween when I went there. One year I came to school as a nun, using an extra costume the theatre department had for its upcoming production of “Sound of Music”. I added a punching nun hand puppet to complete the outfit. Of all my teachers, Sr. Therese thought it was the funniest. She had a wry smile and humor would appear unexpectedly during lessons. She was an expert at wielding a measured amount of chiding, dry wit and the Socratic method so that her students didn’t daydream. She commanded our attention and also our respect.

I’ve never done well in a math class before or after Sr. Therese. I’m sure she left an impression on many of her students and I feel lucky to have known her and gotten to know some of her family. She was smart, funny, strong and an original.

Sending all Sr. Therese’s family and friends much love! She will be missed.
-Raina James, St. Pius Class of 97