The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP FIGI (to the nearest dollar) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
Amazon Stock 023135106   26,162,755 113,347 SH   SOLE 0 113,347 0 0
Johnson & Johnson Stock 478160104   35,811,388 173,044 SH   SOLE 0 173,043 0 0
Waste Management Stock 94106L109   1,378,680 6,275 SH   SOLE 0 6,275 0 0
Sabine Royalty Trust Stock 785688102   479,990 7,000 SH   SOLE 0 7,000 0 0
Procter & Gamble Stock 742718109   29,737,928 207,508 SH   SOLE 0 207,507 0 0
Coca-Cola Stock 191216100   28,743,936 411,156 SH   SOLE 0 411,156 0 0
Enterprise Products Stock 293792107   225,061 7,020 SH   SOLE 0 7,020 0 0
United Parcel Service Stock 911312106   1,627,672 16,410 SH   SOLE 0 16,409 0 0
Medtronic Stock G5960L103   556,668 5,795 SH   SOLE 0 5,795 0 0
Netflix Stock 64110L106   937,600 10,000 SH   SOLE 0 10,000 0 0
Paccar Stock 693718108   41,104,591 375,350 SH   SOLE 0 375,350 0 0
SPDR S&P 500 ETF Trust ETF 78462F103   2,876,339 4,218 SH   SOLE 0 4,218 0 0
Mastercard Stock 57636Q104   1,628,150 2,852 SH   SOLE 0 2,852 0 0
Illinois Tool Works Stock 452308109   42,627,535 173,072 SH   SOLE 0 173,071 0 0
Nordson Stock 655663102   51,666,720 214,893 SH   SOLE 0 214,892 0 0
Emerson Electric Stock 291011104   35,746,505 269,338 SH   SOLE 0 269,337 0 0
FedEx Stock 31428X106   1,762,136 6,100 SH   SOLE 0 6,100 0 0
Pepsico Stock 713448108   2,441,865 17,014 SH   SOLE 0 17,014 0 0
Black Stone Minerals Stock 09225M101   1,594,627 119,987 SH   SOLE 0 119,987 0 0
Honeywell Stock 438516106   24,624,972 126,224 SH   SOLE 0 126,223 0 0
Home Depot Stock 437076102   337,181 980 SH   SOLE 0 979 0 0
Automatic Data Processing Stock 053015103   46,095,876 179,201 SH   SOLE 0 179,201 0 0
SPDR Gold Shares ETF 78463V107   372,135 939 SH   SOLE 0 939 0 0
Becton Dickinson Stock 075887109   1,424,474 7,340 SH   SOLE 0 7,340 0 0
Stellar Bancorp Stock 858927106   1,436,204 46,419 SH   SOLE 0 46,419 0 0
Berkshire Hathaway Class B Stock 084670702   12,629,584 25,126 SH   SOLE 0 25,126 0 0
Adobe Systems Stock 00724F101   11,965,108 34,187 SH   SOLE 0 34,187 0 0
Alphabet Class A Stock 02079K305   2,327,468 7,436 SH   SOLE 0 7,436 0 0
Intuit Stock 461202103   25,518,669 38,523 SH   SOLE 0 38,523 0 0
Microsoft Stock 594918104   132,447,766 273,867 SH   SOLE 0 273,867 0 0
Vanguard Information Technology ETF ETF 92204A702   256,285 340 SH   SOLE 0 340 0 0
Amphenol Stock 032095101   52,370,547 387,528 SH   SOLE 0 387,528 0 0
Alcon Stock H01301128   18,140,225 230,122 SH   SOLE 0 230,122 0 0
Eli Lilly Stock 532457108   811,383 755 SH   SOLE 0 755 0 0
Air Products & Chemicals Stock 009158106   15,436,688 62,492 SH   SOLE 0 62,491 0 0
Duke Energy Stock 26441C204   721,193 6,153 SH   SOLE 0 6,153 0 0
Sysco Stock 871829107   681,322 9,246 SH   SOLE 0 9,245 0 0
Phillips 66 Stock 718546104   352,279 2,730 SH   SOLE 0 2,730 0 0
Zebra Technologies Stock 989207105   12,637,324 52,044 SH   SOLE 0 52,044 0 0
Meta Platforms Stock 30303M102   281,207 426 SH   SOLE 0 426 0 0
Texas Capital Bancshares Stock 88224Q107   316,890 3,500 SH   SOLE 0 3,500 0 0
Broadcom Stock 11135F101   560,336 1,619 SH   SOLE 0 1,619 0 0
Novartis ADR ADR 66987V109   436,910 3,169 SH   SOLE 0 3,169 0 0
Accenture Stock G1151C101   12,075,646 45,008 SH   SOLE 0 45,008 0 0
Nvidia Stock 67066G104   2,938,308 15,755 SH   SOLE 0 15,755 0 0
WW Grainger Stock 384802104   1,846,562 1,830 SH   SOLE 0 1,830 0 0
Abbvie Stock 00287Y109   2,524,822 11,050 SH   SOLE 0 11,050 0 0
Taiwan Semiconductor ADR 874039100   80,443,026 264,711 SH   SOLE 0 264,711 0 0
Stryker Stock 863667101   22,431,494 63,822 SH   SOLE 0 63,821 0 0
Intuitive Surgical Stock 46120E602   37,948,385 67,004 SH   SOLE 0 67,004 0 0
McDonalds Stock 580135101   376,231 1,231 SH   SOLE 0 1,231 0 0
Dover Stock 260003108   40,587,727 207,886 SH   SOLE 0 207,886 0 0
Nokia ADR ADR 654902204   96,843 14,968 SH   SOLE 0 14,968 0 0
Cintas Stock 172908105   33,299,466 177,059 SH   SOLE 0 177,058 0 0
Donaldson Stock 257651109   44,605,964 503,113 SH   SOLE 0 503,112 0 0
Ecolab Stock 278865100   40,763,595 155,278 SH   SOLE 0 155,278 0 0
McCormick & Co Stock 579780206   15,609,663 229,183 SH   SOLE 0 229,183 0 0
Thermo Fisher Scientific Stock 883556102   17,919,221 30,925 SH   SOLE 0 30,924 0 0
Dorchester Minerals Stock 25820R105   1,172,178 52,423 SH   SOLE 0 52,423 0 0
Chevron Corp Stock 166764100   1,477,624 9,695 SH   SOLE 0 9,695 0 0
Conocophillips Stock 20825C104   378,184 4,040 SH   SOLE 0 4,040 0 0
First Financial Bankshares Stock 32020R109   219,126 7,336 SH   SOLE 0 7,336 0 0
Walmart Stock 931142103   290,112 2,604 SH   SOLE 0 2,604 0 0
IBM Stock 459200101   529,623 1,788 SH   SOLE 0 1,788 0 0
Texas Instruments Stock 882508104   15,651,892 90,218 SH   SOLE 0 90,217 0 0
3M Stock 88579Y101   423,465 2,645 SH   SOLE 0 2,645 0 0
Alphabet Class C Stock 02079K107   990,353 3,156 SH   SOLE 0 3,156 0 0
Amgen Stock 031162100   221,262 676 SH   SOLE 0 676 0 0
San Juan Basin Royalty Trust Stock 798241105   957,019 170,288 SH   SOLE 0 170,288 0 0
Eaton Stock G29183103   15,802,555 49,614 SH   SOLE 0 49,614 0 0
Lam Research Stock 512807306   2,310,930 13,500 SH   SOLE 0 13,500 0 0
Bristol-Myers Squibb Stock 110122108   448,727 8,319 SH   SOLE 0 8,319 0 0
Exxon Mobil Stock 30231G102   7,086,505 58,887 SH   SOLE 0 58,887 0 0
Lowes Stock 548661107   527,104 2,186 SH   SOLE 0 2,185 0 0
Apple Stock 037833100   75,709,512 278,487 SH   SOLE 0 278,487 0 0
Abbott Labs Stock 002824100   1,552,099 12,388 SH   SOLE 0 12,388 0 0