• Korey Mack
    Admission Officer
    (214) 346-8197
    Texas A&M University - Commerce - B.A.A.S.
    Texas A&M University - Commerce - M.S.
  • Hossam Mahmoud
    Fencing Coach
  • Tim Mahoney
    Debate Coach
    (214) 346-8141
    University of Kansas - B.G.S.
    Tim joined the St. Mark's community in the fall of 2001. Tim is responsible for all aspects of the debate program at St. Mark's including teaching 7th and 8th grade debate, and coaching the upper school debate team. Before moving to Dallas, Tim was the Director of Debate at Pace University in Manhattan, NY, Prior to his tenure at Pace, Tim was the Director of Forensics at the University of Notre Dame. Since coming to St. Mark's Tim's teams have won several major national tournaments including the 2002 National Forensic League National Tournament. In 2003 he was one of three finalists for the Ralph B. Rogers Excellence in Teaching award.
  • Kathy Mallick
    Lower School Administrative Assistant
    (214) 346 8210
  • Tim Mank
    MS Humanities
    (214) 346-8249
    Duke University - A.B.
    Timothy Mank has been a part of St. Mark’s his whole life. His father, now retired, taught at St. Mark’s as a Middle School Humanities teacher for 28 years and has been a major influence on Tim’s road to becoming a full-time teacher. Tim attended St. Mark’s for 12 years (first through twelfth grade) and graduated in 1987. He then attended Duke University, where he received his B.A. in History. During his school years, Tim had two passions: sports and music. He played football at Duke University and, after graduating, returned to Dallas to coach at St. Mark’s on both the Varsity and Junior Varsity levels. He also has actively pursued a career as a professional musician and songwriter. His writing skills, his interest in history, and his experience performing in front of live audiences has helped him bring excitement to his Humanities class and instill a love of learning in his students. Tim currently teaches 7th Grade Humanities, coaches 7th Grade Football, and plays in the Blues Club.  Tim and his wife Browning have two boys, ages three and four.
  • Nancy Marmion
    Foreign Language Dept. Chair
    (214) 346-8153
    College of William and Mary - A.B.
    University of Texas at Austin - M.A.
    Nancy Marmion joined the St. Mark’s faculty in 1985 as a Spanish teacher and currently serves as Head of the Language Department. Mrs. Marmion received her A.B. from the College of William and Mary and her M.A. from the University of Texas. In addition, she has studied in Spain, Costa Rica, Ecuador, Chile, Peru and Mexico. In 1989, Mrs. Marmion was a recipient of the John H. Murrell Excellence in Teaching Award. An active member of the American Association of Teachers of Spanish and Portuguese, she also serves as an AP Reader. Mrs. Marmion teaches Spanish in the Middle and Upper Schools and sponsors the Spanish Club and the Sociedad Honoraria Hispánica.
  • Cory Martin
    Mathematics Dept. Faculty; Head V Soccer Coach
    (214) 346-8195
    Southern Methodist University - B.S.
    Corindo joined the St. Mark’s Faculty in fall of 1990 teaching mathematics and coaching soccer in the Middle School. A native of Cuba, he graduated from Southern Methodist University in 1985 with a degree in mathematical sciences. He gained valuable teaching experience while on a teaching fellowship in graduate school at the University of North Texas and teaching in the summer program at the Woodberry Forest School. Mr. Martin has been involved in youth soccer at the club and recreational level predating his arrival at St. Mark’s. He is currently an eighth grade advisor and is the Head Coach of Varsity Soccer.
  • Debra Materre
    Lower School
    (214) 346-8603
    Lone Mountain College - B.A.
    California State University, San Francisco - M.A.
    Debra Materre is a native of San Francisco. She joined the St. Mark's community in 2004 and holds a B.A. degree from Lone Mountain College, previously known as San Francisco College for Women. Ms. Materre received her masters degree from San Francisco State University in education, with a concentration in mathematics. In addition to being a classroom teacher Ms. Materre trained new teachers for the Hayward Unified School District, as a mentor teacher, for six years. She has given workshops for elemenatry teachers in math and science in her former district and the local univeristy. Debra enjoys traveling the world and collecting art from her travels. She served as board member for the Sun Gallery in the San Francisco Bay Area, has taught art classes, and created children's art exhibitions.
  • Daniel Mauch
    Security Guard
    (214) 500-7556
  • Marsha McFarland
    Green Master Teaching Chair; US Spanish Teacher
    (214) 346-8561
    Southern Methodist University - B.A.
    Middlebury College - M.A.
    Marsha McFarland joined the St. Mark's Foreign Language Department in 1998 after teaching 23 years in the Richardson Independent School District. She received her M.A. in Spanish from Middlebury College and her B.A. in Spanish and Ibero-American Studies from Southern Methodist University. Ms. McFarland is a recipient of the John H. Murrell Excellence in Teaching Award and the Ackerman Award for Character Education. She currently holds the Cecil H. and Ida Green Master Teaching Chair. In addition to teaching Upper School Spanish, Ms. McFarland is the faculty sponsor for international students.
  • Amee McGough
    Communications and Special Events Coordinator
    (214) 346-8282
    Texas Tech University - B.A.
    Amee McGough joined St. Mark's in 2007 as the Communications and Special Events Coordinator and is responsible for organizing all campus and alumni events such as Homecoming, Grandparents' Day, and Alumni Weekend. Amee's professional background includes non-profit management, marketing, and public relations. She holds a B.A. in Public Relations from Texas Tech University. She and her husband Dan have three children (Mason, Keeran, and Emeree). 
  • Cindee McMahon
    Interim Humanities Teacher
    (214) 346-8313
    Stephen F. Austin State University - B.S.
    Stephen F. Austin State University - M.Ed.
    Cindee McMahon joined the St. Mark’s faculty in 1990 as teacher of Humanities and a member of the history department. Cindee received her undergraduate and graduate degrees from Stephen F. Austin State University, and she completed courses at the University of California, Berkeley, to meet California degree requirements and to obtain her California teaching credentials. Previous teaching experiences include grades 1-8 at independent and public schools in Texas, Florida, and California. During her initial teaching experience in 1972, she was involved in the foundation work in opening an elementary school in Nacogdoches, Texas, that is now in its 31st year of operation. Cindee also held a position on the board of directors of the Center for Open Learning and Teaching in Berkeley, California. In addition to her teaching duties, Cindee is the coordinator of the fifth grade Humanities team and is a fifth grade advisor. The school awarded Cindee the John H. Murrell Excellence in Teaching award in 1993.
  • John Mead
    Eugene McDermott Master Teaching Chair in Science
    (214) 346-8164
    Duke University - B.A.
    Duke University - M.A.T.
    John Mead joined the St. Mark's faculty in the fall of 1990 after earning his Bachelor and Master degrees from Duke University. Having previously served as the 6th Grade Sponsor and Assistant Head of Middle School, Mr. Mead now teaches sections of both 5th and 6th grade science. In addition to these classroom responsibilities, he is the founder and sponsor of the Baseball Simulation Club and the St. Mark’s Microscopy Society. Away from St. Mark's, Mr. Mead enjoys baseball, football, golf, photography, and backpacking. He is also a wildly enthusiastic follower of his alma mater's basketball team.
  • Cira Mesta
    Housekeeping Staff
    (214) 346-8259
  • Joe Milliet
    Thomas B. Walker III '73 Mathematics Dept. Chairman
    (214) 346-8159
    Tulane University - B.S.
    Lamar University - M.Ed.
    Joe Milliet joined the St. Mark's faculty in 2000 as a teacher of both Upper School and Middle School mathematics. Mr. Milliet taught high school mathematics at Beaumont Central High School in Beaumont, Texas, for 22 years during which time he took on many roles as an Advanced Placement (AP) consultant in mathematics for the College Board. These roles included serving as a workshop leader in AP Calculus, as a reader of the AP Calculus exams, and as a member of the AP Calculus test development committee. In June 1998, Mr. Milliet became an associate director for the AP Program with the College Board office in Austin, Texas. After two years in Austin working with both the College Board and the University of Texas to develop AP support materials, Mr. Milliet decided to return to teaching by joining the faculty at St. Mark's. In addition to his teaching duties, he is the sponsor of the Upper School Math Team and a class sponsor in the junior/senior rotation.
  • David Mitchell
    Senior Maintenance Engineer
    (214) 346-8262
  • Kristin Mlakar
    Assistant to the Director of Finance & Administration
    (214) 346-8118
  • Paul Mlakar
    Director of Academic Information Systems; Math Department
    (214) 346-8451
    Ohio State University - B.S.
    University of Houston - M.A.

    Paul Mlakar was appointed to the mathematics department in 2003. Paul says he "bleeds scarlet and grey", having earned his Bachelor of Science degree in mathematics education from The Ohio State University in 1994. He earned his Master of Education degree in curriculum and instruction in 2003 from the University of Houston. He has worked in various aspects of education throughout his career, first as a high school math teacher in Pasadena, Texas, followed by an education specialist at Space Center Houston, the visitor center for NASA's Johnson Space Center in Houston. He left that position to serve as an education specialist at the Region IV Education Service Center in Houston, where he provided training and professional development to math teachers throughout the Houston area and around the state of Texas. Paul has authored numerous mathematics curricula for Geometry, Algebra II, and Mathematical Modeling, and has served in advisory positions for several different mathematics textbooks and online mathematics resources for teachers and students. During his breaks, he continues to provide professional development training to math teachers throughout the country. In addition to his teaching responsibilities, he also serves as the technology resource lead for the mathematics department. He coaches the St. Mark's Academic Quiz Bowl team, and advises the Model United Nations club and the just-for-fun non-gambling poker club. He is married; he and his wife, Kristin, share their home in north Dallas with their two lovable labs, Davinci and Eva.





  • Anna Morris
    Development Office Coordinator
    (214) 346-8134
  • Michael Morris
    Chair, English Department
    (214) 346 8307
    Williams College - B.A.
    Columbia University, Teachers College, Klingenstein Center - M.A.
    Michael Morris grew up in Denver, Colorado. He graduated cum laude from Williams College with a B.A. in English and Psychology, and with four varsity soccer letters. Though he had intended to begin teaching at an independent school upon graduation, he was first recruited to work for Goldman Sachs in New York, where he learned the value of a liberal arts education. Michael finally began teaching in 1994, back in Colorado, at the Vail Mountain School  a one-building K-12 college preparatory school. There he coached soccer, taught English, and served in various academic leadership roles. After seventeen years and a master’s degree from Columbia University, Michael moved to lead the English Department at Western Reserve Academy, a 9-12 boarding school south of Cleveland, Ohio. Three years later, Michael learned of the opening at St. Mark’s.  He and his family are grateful for the school and its community. They have enjoyed a warm welcome, the warmer climate, and the opportunities of the Dallas area.
  • Susan Morris
    2nd Grade Teacher
    (214) 346-8212
    University of Texas at Austin - B.S.
    University of Richmond - M.L.A.
    Susan Morris joined the faculty of St. Mark’s in 2010 with over 30 years of teaching experience in independent schools in Texas and Virginia. She received her Bachelor of Science degree from The University of Texas at Austin and her Master of Liberal Arts degree from The University of Richmond. Susan previously taught first, second, and third grade classes at The Hockaday School in Dallas and The Collegiate School in Richmond, Virginia. She currently teaches Language Arts, Social Studies, and Math to the second graders at St. Mark’s. With her one daughter grown, much of her free time is spent traveling, gardening, and spending quality time with her grandson.
  • Donna Mullett
    Humanities 5
    (214) 346-8240
    University of Massachusetts Amherst - B.A.
    Yale University - M.A.
    Born in Massachusetts, Donna received two undergraduate degrees from the University of Massachusetts in Amherst. One degree was in Japanese Language and Literature and the other in Fine Arts. Her election into Phi Beta Kappa was a highlight of her undergraduate years. From 1986-1989 Donna lived in Sapporo, Japan, where she taught English as a Second Language. After completing her M.A. in East Asian Studies at Yale University, she joined the St. Mark's School of Texas faculty in 1991 as an instructor of Japanese. Currently, she teaches in the Middle and Upper School and is a Middle School advisor. Outside of school, she can often be found teaching karate at the Okinawan Karate Club of Dallas.
  • Alicia Muratalla
    Food Services Staff
    (214) 346-8175
  • Ana Muratalla
    Food Services Staff
    (214) 346 8175
  • Ben Muratalla
    Food Services Chef
    (214) 346-8175
  • Lupe Muratalla
    Maintenance Staff
    (214) 346-8298
  • Jose Muratalla
    Maintenance Staff
    (214) 346-8262
  • Maria Muratalla
    Food Services Staff
    (214) 643-8175
  • Kendall Murphy
    Computer Science Teacher; 6th Grade Sponsor
    (214) 346-8291
    Texas Christian University - B.S.
  • Paige Myers
    Spanish Teacher
    (214) 346-8320
    Baylor University - B.A.
    Baylor University - M.A.

St. Mark's School of Texas

10600 Preston Road
Dallas, TX 75230

Main School Number
(214) 346-8000

Upper School Office
(214) 346-8107

Middle School Office
(214) 346-8103

Lower School Office
(214) 346-8210

Admission Office
(214) 346-8700

Development Office
(214) 346-8800

Business Office
(214) 346-8118

St. Mark's School of Texas

10600 Preston Road
Dallas, Texas 75230


About Us

St. Mark’s School of Texas is a private, nonsectarian college-preparatory boys’ day school for students in grades 1 through 12, located in Dallas, Texas. St. Mark’s aims to prepare young men to assume leadership and responsibility in a competitive and changing world.