St. Mark's School of Texas

The information in this column was provided to MinistryWatch by the ministry itself. It was last updated 9/13/2021. To update the information in this column, please email:


St. Mark's School of Texas is a nonsectarian, college-preparatory, independent day school for boys in grades one through twelve. The School's charter states that it is "designed to afford its students well-rounded physical, intellectual, moral, and religious training and instruction." The School is intended to be a diverse community of teachers and students who share a love of learning and who strive for high achievement in whatever they undertake.

Contact information

Mailing address:
St. Mark's School of Texas
10600 Preston Road
Dallas, TX 75230


Phone: 214-346-8000


Organization details

EIN: 750827460

CEO/President: David W. Dini

Chairman: Katherine R. Crow

Board size: 49

Founder: M.B. and Ada Terrill

Ruling year: 1952

Tax deductible: Yes

Fiscal year end: 06/30

Member of ECFA: No

Member of ECFA since:


St. Mark's Statement of Purpose:

St. Mark's School of Texas is a nonsectarian, college preparatory independent day school for boys in grades 1-12. The Charter states that the school is "designed to afford its students well-rounded physical, intellectual, moral, and religious training and instruction." The St. Mark's Board of Trustees intends for the school to be a diverse community of teachers and students who share a love of learning and who strive for high achievement in whatever they undertake.

Challenging studies in the Sciences, Arts, and Humanities form the basis of a St. Mark's education. Teachers work to instill an enthusiasm for learning, to encourage independent and critical judgment, and to demonstrate the methods for making sound inquiries and for effective communication. To complement this academic experience, St. Mark's offers boys a rich variety of opportunities for involvement and leadership in the school community and on its playing fields, to realize their potential, rewarding those who strive as well as those who achieve.

St. Mark's aims to prepare young men for assuming leadership and responsibility in a competitive and changing world. To this end, the school professes and upholds certain values. These values include the discipline of postponing immediate gratification in the interest of earning eventual, hard-won satisfaction; the responsibility of defending one's own ideas, of respecting the views of others, and of accepting the consequences for one's own actions; and an appreciation for the lively connection between knowledge and responsibility, privilege and the obligation to serve.

Mission statement

Statement of faith

Donor confidence score

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Financial efficiency ratings

Sector: K-12 Schools/Academies

CategoryRatingOverall rankSector rank
Overall efficiency rating932 of 102240 of 40
Fund acquisition rating755 of 102433 of 40
Resource allocation rating957 of 102437 of 40
Asset utilization rating687 of 102232 of 40

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Balance sheet
Receivables, inventories, prepaids$26,373,781$22,409,963$16,147,970$19,660,283$15,260,044
Short-term investments$116,440,309$113,132,136$108,588,239$106,485,208$81,069,435
Other current assets$0$0$0$0$0
Total current assets$175,043,151$163,427,827$165,210,527$168,715,408$131,567,802
Long-term investments$18,408,310$23,538,192$23,791,327$22,556,074$29,634,010
Fixed assets$80,746,389$78,382,716$64,976,821$51,797,199$49,800,869
Other long-term assets$1,167,673$1,201,395$1,067,741$980,731$822,002
Total long-term assets$100,322,372$103,122,303$89,835,889$75,334,004$80,256,881
Total assets$275,365,523$266,550,130$255,046,416$244,049,412$211,824,683
Payables and accrued expenses$5,386,998$4,180,193$6,476,637$4,029,309$3,269,103
Other current liabilities$25,270,224$24,362,557$15,525,083$15,686,396$13,485,784
Total current liabilities$30,657,222$28,542,750$22,001,720$19,715,705$16,754,887
Due to (from) affiliates$0$0$0$0$0
Other long-term liabilities$0$0$0$0$0
Total long-term liabilities$3,047,118$3,280,879$3,510,537$3,734,298$3,953,060
Total liabilities$33,704,340$31,823,629$25,512,257$23,450,003$20,707,947
Net assets20202019201820172016
Without donor restrictions$98,180,924$85,527,898$62,115,273$50,096,123$46,999,147
With donor restrictions$143,480,259$149,198,603$167,418,886$170,503,286$144,117,589
Net assets$241,661,183$234,726,501$229,534,159$220,599,409$191,116,736
Revenues and expenses
Total contributions$5,532,748$12,674,845$11,849,243$24,895,545$10,661,447
Program service revenue$24,184,803$23,177,791$22,336,615$21,220,107$20,284,307
Membership dues$0$0$0$0$0
Investment income$4,074,846$4,969,020$6,837,884$5,166,287$4,964,054
Other revenue$11,893,910$598,529$627,930$844,558$754,450
Total other revenue$40,153,559$28,745,340$29,802,429$27,230,952$26,002,811
Total revenue$45,686,307$41,420,185$41,651,672$52,126,497$36,664,258
Program services$23,889,356$28,282,074$22,719,704$22,128,427$20,753,471
Management and general$11,579,916$6,523,315$12,000,967$9,539,309$10,566,101
Total expenses$37,337,037$36,779,693$36,464,052$33,501,073$33,028,007
Change in net assets20202019201820172016
Surplus (deficit)$8,349,270$4,640,492$5,187,620$18,625,424$3,636,251
Other changes in net assets$0$0$0$0$0
Total change in net assets$8,349,270$4,640,492$5,187,620$18,625,424$3,636,251


David DiniHeadmaster$704,950
John AshtonAssociate Headmaster$410,523
Suzanne TownsendChief Financial Officer$333,184
John S JollySr. Director Leadership Gi$208,581
James WomackDirector of Development$203,125
Dean ClaymanHead of Middle School$190,409
Mark WebbDirector of Physical Plant$185,291
James E Windlinger JrController$175,616

Compensation data as of: 6/30/2020

Response from ministry

No response has been provided by this ministry.

The information below was provided to MinistryWatch by the ministry itself. It was last updated 9/13/2021. To update the information below, please email:


St. Mark's proudly builds upon a rich heritage of scholarship and excellence in education that dates back nearly to the turn of the century. In 1906, Mr. M.B. Terrill, fresh out of Yale University, came to Dallas, a city of over 70,000 citizens, and established the prestigious Terrill School for Boys, which served both day and boarding students through classes so small, and professor-student relationships so supportive, that teachers almost assumed the role of private tutors and top achievement was assured.

In 1913, at Mr. Terrill's urging, Ela Hockaday moved to Dallas and opened the Hockaday School for Girls. The Hockaday campus on Haskell and the Terrill campus at Peak and Swiss backed up to one another with a simple fence in between. In 1946, Terrill School became The Cathedral School, which in turn merged in 1950 with Texas Country Day School, founded in 1933, to form St. Mark's School of Texas.

Impressive facilities such as the planetarium, observatory, and greenhouse once inspired Time magazine to call St. Mark's the "best equipped day school in the country." In the sixties and seventies, the School established a financial aid program and initiated innovative teaching methods within the classical curriculum where appropriate. During the eighties, the Board of Trustees developed a forward-looking strategic plan called Goals for St. Mark's which resulted in dramatic modernization of the School's physical plant and substantial growth of its endowment.

Today the School continues its tradition of excellence serving more than 900 boys and their families.


1906 - Menter B. Terrill and his wife Ada establish The Terrill School on the principles of providing rigorous academic preparation and strict discipline for boys.

1933 - The parents of Menter Terrill's former students join together to establish Texas Country Day School.

1946 - The Terrill School reopens as Cathedral School for Boys.

1950 - Cathedral School for Boys and Texas Country Day merge to form St. Mark's School of Texas.

1961 - The McDermott-Green Science & Mathematics Quadrangle opens to national acclaim.

1972 - Ninth graders embark on the first annual Pecos Wilderness Trip, a 12-day hiking excursion that continues to this day.

1977 - Donors establish the first fully-endowed Master Teaching Chair.

1988 - The Terrill School is recognized as the original predecessor school of St. Mark's.

2006 - The School celebrates its Centennial Year.

2013 - The Centennial Challenge capital campaign successfully concludes, surpassing its goal of $110 million.

2017 - St. Mark's launches Goals for St. Mark's IV, a strategic plan that will serve as a road map for the future.

2019 - The Winn Science Center and McDermott-Green Science Building open, ushering in a new era of science education at St. Mark's.

Program accomplishments