2026-01-13T16:21:50-05:00 2025-08-31 752069885 Owen E Barnett CPA 4606 Park Springs Blvd Ste 120 Arlington TX 76017 990PF 2024-09-01 237237919 The Eugene McDermott Foundation % Mary McDermott Cook EUGE 2143699222 1937 Malone Cliff View Dallas TX 75208 MARY MCDERMOTT COOK Pres Trustee 2143699222 2026-01-05 false true OWEN E BARNETT P00500582 2148550670 X 2024 2025-03-06 01:10:19Z X 204713403 X 27287 6341491 6310359 14914325 71463673 14914325 62290 62290 21345393 21286974 34000 8500 25500 18250 4563 13687 756962 700640 56322 503 503 353379 29321 1163094 743527 95509 55464000 55464000 56627094 743527 55559509 -35281701 20543447 0 19712 19097 19097 6848524 2880480 2880480 21048006 16920301 16896954 100994740 84206014 150204498 19840004 15581959 15637310 16446847 11374792 19075064 165197833 130982643 204713403 0 0 X 165670357 130982643 -472524 165197833 130982643 165197833 130982643 165197833 -35281701 1066511 130982643 130982643 Publicly traded securities 67330970 56549348 10781622 10781622 CHCP Global Securities LP - K-1 4132703 4132703 4132703 14914325 285554 0 285554 0 285554 307000 307000 21446 21446 false false false false false false false true true TX true false false false false true Mary M Cook 2143699222 1937 Malone Cliff View Dallas TX 75208 false false false true true false false false false false false false false false false false false false false false false false false Mary McDermott Cook 1942 Malone Cliff View Dallas TX 75208 Pres Trustee 10.00 0 0 0 J H Cullum Clark 53443 Waneta Dallas TX 75209 Trustee 1.00 0 0 0 Patricia Brown 4303 Glenleigh Drive Dallas TX 75220 Assistant Sec 20.00 34000 0 0 Sam Self 6918 Oak Manor Drive Dallas TX 75230 Trustee 1.00 0 0 0 Liza Lee 3740 Holland Avenue D Dallas TX 75219 Trustee 1.00 0 0 0 Joe Hubach 4311 W Lawther Dallas TX 75214 Trustee 1.00 0 0 0 Grace Cook 1503 Corto Dallas TX 752183208 Trustee 1.00 0 0 0 NONE 0 Bank of America Private Bank 901 Main St 19th Floor Dallas TX 752023714 AgencyInvestment 176610 CH Investment Partners 3953 Maple Avenue Suite 250 Dallas TX 75219 Investment manager 209575 UBS Financial Services Inc 7250 Dallas Parkway 12th Floor Dallas TX 752044920 Investment manager 150911 NA 0 NA 0 0 214743216 19482 0 214762698 0 0 214762698 3221440 211541258 10577063 10577063 285554 285554 10291509 10291509 10291509 55559509 55559509 10291509 7347669 5958117 3066699 7477990 49496807 73347282 55559509 10291509 45268000 118615282 0 7347669 111267613 5958117 3066699 7477990 49496807 45268000 None None Mary McDermott Cook 1937 Malone Cliff View Dallas TX 75208 2143699222 No prescribed form required None None American Red Cross - DFW Chapter 2055 Kendall Drive Dallas TX 75235 PC For Disaster Relief in Dallas 250000 Arts Mission Oak Cliff 410 S Windomere Ave Dallas TX 75208 PC For the Production of Hair 30000 Ascend Dallas 4201 Spring Valley Rd Suite 1400 Dallas TX 75244 PC For Economic Advancement Program 100000 ATT Performing Arts Center 700 North Pearl Street Suite N1800 Dallas TX 75201 PC For Events and Programming 200000 ATT Performing Arts Center 700 North Pearl Street Suite N1800 Dallas TX 75201 PC For Programming and Events 250000 Big Thought 1409 Botham Jean Blvd Ste 1015 Dallas TX 752156863 PC For General Support 250000 Black Tie Dinner Inc 3824 Cedar Springs Road Ste 335 Dallas TX 75219 PC For Gala 100000 Braniff Airways Foundation Inc P O Box 610646 2200 Braniff Blvd Dallas TX 75261 PC For Art Collection Public Project 25000 Bruce Wood Dance Co Inc 3630 Harry Hines Blvd Box 36 Dallas TX 75219 PC For Dancers Health Insurance 50000 Compass School of Texas 5414 W Northwest Hwy Dallas TX 752203903 PC For Curriculum Development 1500000 Dallas Arboretum and Botanical Gardens 8525 Garland Rd Dallas TX 75218 PC For Visitor Education Pavilion 750000 Dallas Contemporary 161 Glass St Dallas TX 75207 PC For Free Admission 100000 Dallas Foundation 3000 Pegasus Park Dr Ste 930 Dallas TX 75247 PC For AURORA for Operations 250000 Dallas Museum of Art 1717 N Harwood St Dallas TX 75201 PC For Collections Gala 100000 Dallas Museum of Art 1717 N Harwood St Dallas TX 75201 PC For Junior Associates 25000 Dallas Symphony Orchestra 2301 Flora Street Dallas TX 75201 PC For 3rd Annual YP X Event 40000 Dallas Symphony Orchestra 2301 Flora Street Dallas TX 75201 PC For Ring Cycle and Operations 1000000 Dallas Theater Center 2400 Flora St Dallas TX 75201 PC For Centerstage 15000 Dallas Zoological Society 650 S RL Thornton Freeway Dallas TX 75203 PC For Zoo to Do 200000 Ecolife Conservation 2810 Pio Pico Dr Carlsbad CA 920081521 PC For Monarch Butterfly Conservation 50000 Friends of Warren Ferris Cemetery 1609 Saint Francis Ave Dallas TX 752184369 PC For Constellation of Living Memorials Program 50000 Gensis Womens Shelter Support 2023 Lucas Dr Dallas TX 75219 PC For Womens Services 25000 Girl Scouts of Northeast Texas 6001 Summerside Dr Ste 101 Dallas TX 75252 PC For Programs 50000 Greenspace Dallas 9200 Chancellor Row Dallas TX 75247 PC For Operations 250000 Keep America Beautiful Inc 1010 Washington Blvd Stamford CT 069012202 PC For Operations in Texas 100000 My Possibilities 3601 Mapleshade Lane Plano TX 75075 PC For Operations 250000 Nasher Sculpture Center 2001 Flora Street Dallas TX 75201 PC For Nasher Prize 50000 Natl Tr for Historic Preservation 600 14th St NW Ste 500 Washington DC 200052011 PC For Operations 25000 Nexus Recovery Center Incorporated 8733 La Prada Drive Dallas TX 75228 PC For Operations 150000 OutLoud Dallas 5500 Caruth Haven Lane Dallas TX 75225 PC For Programs 150000 Perot Museum of Nature and Science 2201 N Field St Dallas TX 75201 PC For Operations 50000 Reader 2 Leaders PO Box 195076 Dallas TX 75219 PC For Operations 100000 Resource Center of Dallas Inc 5750 Cedar Springs Road Dallas TX 75235 PC To Change Landscape ofHealthcare for LGBTQIA 3000000 Ronald McDonald House of Dallas Inc 4707 Bengal St Dallas TX 75235 PC For Operations 25000 Skateparks for Dallas 6904 Bob O Link Dr Dallas TX 752143236 PC For Westmoreland Skate Park 150000 Southern Gateway Public Green Fnd 633 W Davis St Ste 227 Dallas TX 75208 PC For Construction of Park 5000000 St Phillips School Comm Center 1600 Pennsylvania Ave Dallas TX 75215 PC For Destiny Award Luncheon 40000 Suicide Crisis Center of N Texas 2808 Swiss Ave Dallas TX 75204 PC For Teens Can Survive Program 20000 TACA Inc 1722 Routh Street Dallas TX 75201 PC For 2025 Silver Cup Award 25000 TACA Inc 1722 Routh Street Dallas TX 75201 PC For Core Programs 500000 Teach for America Inc 3000 Pegasus Park Dr Ste 1045 Dallas TX 75247 PC For Operations 175000 Texas Tree Foundation 3000 Pegasus Park Drive Ste 740 Dallas TX 75247 PC For Cool Schools 1000000 Texas Jazz Band 440 Lakewood Dr Fairview TX 75069 PC For Three Conserts 14000 The Cedars Union 1219 S Ervay Dallas TX 75215 PC For Operations 500000 TITASDANCE UNBOUND 700 N Pearl St Ste N1800 Dallas TX 75201 PC For Capacity Building Campaign 50000 Turtle Creek Chorale 3630 Harry Hines Blvd Ste 360 Dallas TX 75219 PC For Rhapsody Gala 100000 U S A Film Festival 6116 N Central Expressway Ste 105 Dallas TX 75206 PC For KidFilm 6000 United Way of Metropolitan Dallas 1800 North Lamar Dallas TX 75202 PC For Social Innovation Lab & DataCapacity Bldg 2000000 University of Texas at Dallas 1966 Inwood Rd Dallas TX 75235 PC For Center for Brain Health 500000 University of Texas at Dallas 1966 Inwood Rd Dallas TX 75235 PC For Polycraft World Initiative 355000 UT Southwestern Medical Center 5323 Harry Hines Blvd Dallas TX 753909009 PC For Liver Disease and Transplant Research 1000000 Vickery Meadow Youth Dev Fnd 7110 Holly Hill Dr Dallas TX 75231 PC For Success Center 100000 Volunteers of America 300 E Midway Dr Euless TX 76039 PC For The Fran Tynan Empowerment Endowment Programs 500000 World Affairs Council of DFW 325 N St Paul Street Ste 2200 Dallas TX 752013842 PC For Global Youth Leaders Program 50000 Young Womens Preparatory Network 1722 Routh Street Ste 720 Dallas TX 75201 PC Irma Lerma Rangel Young Womens Leadership School 25000 Youth With Faces 6333 E Mockingbird Ln Ste 147-872 Dallas TX 75214 PC For Programs 20000 AIA Dallas Foundation 325 N St Paul St Dallas TX 75201 PC To establish McDermott Traveling Fellowship 75000 Bishop Arts Theatre Center 215 S Tyler St Dallas TX 75208 PC For Programs 30000 ChildCareGroup 3000 Pegasus Park Dr Suite 800 Dallas TX 75247 PC For Programs 50000 Lumin Education 7130 Lindsley Ave Dallas TX 75223 PC For Programs 100000 Southwestern Medical Foundation 3889 Maple Ave Ste 100 Dallas TX 75219 PC For Doc Stars 50000 African American Museum 3536 Grand Ave Dallas TX 75210 PC For Founders Ball 50000 ALS Association 1300 Wilson Blvd Arlington VA 22209 PC For Operations 100000 Audubon Dallas PO Box 12713 Dallas TX 75225 PC For Songbird Sanctuary 50000 Child Poverty Action Lab 1808 S Good Latimer Expy Ste 102 Dallas TX 75226 PC For Trust Her Contraceptive Access Initiatives 75000 Communities Foundation of Texas 5500 Caruth Haven Ln Dallas TX 75225 PC For Texas African American Museum Fund 1000000 Dallas Afterschool 3900 Willow St Ste 110 Dallas TX 75226 PC For Operations 50000 Dallas Holocaust and Human Rights Museum 300 N Houston St Dallas TX 75202 PC For Humanity 50000 Dallas Life 1100 Cadiz St Dallas TX 75215 PC For operations 25000 The Dallas Opera 2403 Flora St Ste 500 Dallas TX 75201 PC For Operations 700000 Georgia OKeeffe Museum 217 Johnson St Santa Fe NM 87501 PC For Capital Campaign 1000000 Greater Dallas Youth Orchestra 3630 Harry Hines Blvd Dallas TX 75219 PC For Operations 15000 Health Equity Foundation of Greater Texas 7424 Greenvile Ave Ste 211 Dallas TX 75231 PC For Operations 5000000 Los Barrios Unidos Community Clinic 809 Singleton Blvd Dallas TX 75212 PC For Operations 35000 Museum of the American Railroad 8004 Dallas Pkwy Ste 400 Frisco TX 75034 PC For Locomotive Restoration 30000 North Texas Public Broadcasting 3000 Harry Hines Blvd Dallas TX 75201 PC For The Future of KERA 5000000 Southern Diabetic Foundation PO Box 918 Gainesville TX 76241 PC For Camp Scholarships 10000 Teatro Dallas 1230 River Bend Dr Ste 111 Dallas TX 75247 PC For 40th Season 25000 Texas Vignette 1108 Quaker St Dallas TX 75207 PC For Vignetee Art Fair 25000 Visiting Nurse Association 1420 Mockingbird Ln Ste 700 Dallas TX 75247 PC For Operations 250000 Well Community 125 Sunset Ave Dallas TX 75208 PC For Programs 15000 Broadway Dallas 909 1st Avenue Dallas TX 75210 PC For Dallas Day School and 100th Anniversary 150000 Zeta Tau Alpha Foundation 1036 S Rangeline Rd Carmel IN 46032 PC For Breast Cancer Research 10000 After-School All-Stars 2902 Swiss Ave Dallas TX 75204 PC For Programs 10000 Baylor Scott White 300 N Washington Ave Dallas TX 75246 PC For Endowment 300000 Builders of Hope 603 Munger Ave Ste 100 Dallas TX 75202 PC For West Dallas Anti-Displacement Program 150000 Christopher Barkley Foundation 3710 Rawlins St Ste 1600 Dallas TX 75219 PC For Mental Health Awareness 10000 Dallas Area Habitat for Humanity 2800 N Hampton Rd Dallas TX 75212 PC For Purchase of Building 500000 Dallas Area Parkinson Society 12900 Preston Rd Ste 320 Dallas TX 75230 PC For Operations 25000 Dallas Chamber Symphony 2520 Flora St Dallas TX 75201 PC For Operations 25000 Dallas Childrens Theater 5938 Skillman St Dallas TX 75231 PC For Gala 10000 Dallas Holocaust and Human Rights Museum 300 N Houston St Dallas TX 75202 PC For Endowment 1000000 DOC Cares 539 W Commerce St Ste 4304 Dallas TX 75208 PC For the Dreams Experience Academy 50000 Ducks Unlimited One Waterfowl Way Memphis TN 38120 PC For Texas Conservation Initiatives 25000 First Presbyterian Church 1835 Young St Dallas TX 75201 PC For The Stewpots Acquisition of City Square 1000000 Forest Forward 1808 S Good Latimer Expy Ste 200 Dallas TX 75226 PC For Restoration of Forest Theater 750000 Friends of the Dallas Public Library 1515 Young St Dallas TX 75201 PC For 75th Anniversary 75000 Friends of the Katy Trail 3102 Maple Ave Ste 230 Dallas TX 75201 PC For Capital Campaign 50000 High Tech High Heels 909 Lake Carolyn Pkwy Ste 320 Irving TX 75039 PC For 2025 Friendraiser 50000 The Hockaday School 11600 Welch Rd Dallas TX 75229 PC For Scholarships 30000 Josephine Torres Cultural Community Center 3232 Bataan St Dallas TX 75212 PC For The Bataan Center 500000 The Kessler School 1822 W 10th St Dallas TX 75208 PC For Capital Campaign 250000 Make Art with A Purpose 1300 S Polk Ste 225 Dallas TX 75224 PC For Programs 15000 National Audubon Society 6500 S Great Trinity Forest Way Dallas TX 75217 PC For Trinity River Audubon Center 100000 Reading Partners 7950 Elmbrook Dr Dallas TX 75247 PC For Tutoring Sessions 10000 SPCA of Texas 2400 Lone Star Dr Dallas TX 75212 PC For Capital Campaign 1000000 Stanford University 450 Jane Stanford Way Stanford CA 94305 PC For operations 500000 The Storehouse 1401 Mira Vista Blvd Plano TX 75093 PC For Operations 25000 TITASDANCE UNBOUND 700 N Pearl St Ste N1800 Dallas TX 75201 PC For Command Performance and Gala 10000 Uplift Education 3000 Pegasus Dr Ste 1100 Dallas TX 75247 PC For Pre-K at Uplift 150000 UTSW and Childrens Health 1935 Medical District Dr Dallas TX 75235 PC For New Pediatric Campus 1000000 Metrocare Dallas 3242 Remond Dr Dallas TX 75211 PC For General Support 1000000 The Dallas 24 Hour Club 4636 Ross Ave Dallas TX 75204 PC For General Support 400000 Austin Street Center 1717 Jeffries St Dallas TX 75226 PC For Operations 25000 Braniff Airways Foundation Inc PO Box 610646 2200 Brfaniff Blvd Dallas TX 75261 PC For Operations 30000 Christopher Barkley Foundation 3710 Rawlins St Ste 1600 Dallas TX 75219 PC For Operations 15000 Corsicana Artist Writer Residency 100 W 3rd Ave Corsicana TX 75110 PC For Rent 24000 Dallas Childrens Theater 5938 Skillman St Dallas TX 75231 PC For Student Matinee Performance Series 50000 Dallas Historical Society 3939 E Grand Ave Dallas TX 75210 PC For History Makers Awards 10000 The Dallas Opera 2403 Flora St Ste 500 Dallas TX 75201 PC To help Meet ODonnell Foundation Matching Grant 7000000 Dallas Symphony Orchestra 2301 Flora St Dallas TX 75201 PC For Operations 125000 Episcopal School of Dallas 4100 Merrell Rd Dallas TX 75229 PC For Robotics Club Support 20000 Equest 811 Pemberton Hill Rd Bldg 4 Dallas TX 75217 PC For Programs 100000 Full Frame Foundation 8648 Landale Cr Dallas TX 75238 PC For Filming of DUST 25000 Kinfolk House 1913 Wallace St Fort Worth TX 76105 PC For Operations 50000 North Texas Food Bank 3677 Mapleshade Ln Plano TX 75075 PC For Food Purchases 1000000 Operation Kindness 3201 Earhart Dr Carrollton TX 75006 PC For Operations 25000 Shakespeare Dallas 6301 Gaston Ave Ste 1439 Dallas TX 75214 PC For Technical Production Infrastructure 100000 Southwestern Medical Foundation 3889 Maple Ave Ste 100 Dallas TX 75219 PC For DocStars Event 25000 Texas Vignette 1108 Quaker St Dallas TX 75207 PC For Vignette Art Fair 50000 Trusted Word 613 Easy St Ste B Garland TX 75042 PC For Expansion 100000 United to Learn 3000 Pegasus Park Dr Ste 940 Dallas TX 75247 PC For Programs 150000 United Way of Metropolitan Dalla 1800 North Lamar Dallas TX 75202 PC For Operations 50000 University of Texas at Austin 110 Inner Campus Dr Austin TX 78712 PC To Restore Revitalize and Reimagine the UT Tower 100000 Uptown Players 1327 Motor Circle Dallas TX 75207 PC For 2025-2026 Season 10000 Vogel Alcove 1738 Gano St Dallas TX 75215 PC For Dallas Area Child Care Centers 100000 North Texas Public Broadcasting 3000 Harry Hines Blvd Dallas TX 75201 PC For Matching Grant 500000 Gay Lesbian Fund 3825 Cedar Springs Rd Ste 371 Dallas TX 75219 PC For Matching Grant 80000 Parkland Health Foundation 1341 W Mockingbird Ln Ste 1100e Dallas TX 75247 PC For Developmental Child Care for Patients and Staf 1000000 Pegasus Contemporary Ballet 3630 Harry Hines Blvd Box 46 Dallas TX 75219 PC For Operations 20000 55464000 0 14 6341491 18 14914325 Invest income - K-1 14 62290 21318106 21318106 false false false false false false false false false false X X 1 Margaret M McDermott Estate 4303 Glenleigh Drive Dallas TX 75220 27287 X Owen Barnett CPA-Form 990-PF 18250 4563 0 13687 BOA-2629210-sch attached 3405896 3441729 Pershing P4K-6802-sch attached 1695858 1746269 UBS acct 51860-sch attached 10480205 10449312 BOA acct 0035007-sch attached 1173862 1848783 BOA acct 0048896-sch attached 0 0 BOA acct 7208143-sch attached 22989855 40695373 Pershing P4K-2942-sch attached 2257872 2307008 Pershing NOK-6851-sch attached 5282259 5288816 Pershing QAG-2652-sch attached 13811184 27330143 UBS acct 51860-sch attached 23022645 41729220 UBS acct 51896-sch attached 15668337 31005155 8696933 8600996 5290194 5304849 BOA-7208143-Mineral interest 1 100 CHCP Global Securities, L.P. 9622048 17246358 UBS acct 81896-see sched. 1010000 975194 CHCP Direct Investors, LP CLO TE 742743 853412 Other investment income - K-1 62290 62290 0 Adjustment to cost basis of assets 1066510 Rounding 1 Bank of America-agency fees 176610 141288 0 35322 Angie Shepard-contract admin 28000 7000 0 21000 CH Investment Partners-fees 209575 209575 0 0 Advisory fees BOA 6414 6414 0 0 CHCP Global Securities LP-fees 182262 182262 0 0 UBS-investment fees 150911 150911 0 0 CHCP Direct Investors LP-fees 3190 3190 0 0 Federal excise taxes paid 324058 0 0 0 Foreign taxes paid 29321 29321 0 0