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 (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
3m Company COM 604059105 5,167 26,011 SH   SOLE   0 0 0
AT&T COM 001957109 3,838 133,360 SH   SOLE   0 0 0
AbbVie Inc COM 00287Y109 989 8,782 SH   SOLE   0 0 0
Abbott Labs COM 002824100 444 3,826 SH   SOLE   0 0 0
Activision Inc COM 004930202 2,617 27,420 SH   SOLE   0 0 0
Adobe Systems Inc COM 00724F101 402 687 SH   SOLE   0 0 0
Agnico-Eagle COM 008474108 206 3,400 SH   SOLE   0 0 0
Air Prods & Chems COM 009158106 4,414 15,345 SH   SOLE   0 0 0
Allstate COM 020002101 443 3,400 SH   SOLE   0 0 0
Alphabet A (Google New) COM 38259P508 14,294 5,854 SH   SOLE   0 0 0
Alphabet C Non-voting (Google) COM 38259P706 23,534 9,390 SH   SOLE   0 0 0
Altria Group COM 718154107 368 7,718 SH   SOLE   0 0 0
Amazon COM 023135106 2,714 789 SH   SOLE   0 0 0
American Express COM 025816109 11,828 71,583 SH   SOLE   0 0 0
Amgen Inc COM 031162100 832 3,415 SH   SOLE   0 0 0
Apple Computer COM 037833100 9,229 67,383 SH   SOLE   0 0 0
Automatic Data Proc. COM 053015103 17,860 89,921 SH   SOLE   0 0 0
Autozone Inc COM 053332102 269 180 SH   SOLE   0 0 0
Bank Of America COM 060505104 4,270 103,556 SH   SOLE   0 0 0
Bank Of NY Mellon COM 064057102 2,933 57,260 SH   SOLE   0 0 0
Bausch Health Companie F COM 071734107 248 8,475 SH   SOLE   0 0 0
Berkshire Hathaway COM 084670991 4,605 11 SH   SOLE   0 0 0
Berkshire Hathaway B COM 084670207 44,068 158,563 SH   SOLE   0 0 0
Boeing COM 097023105 427 1,781 SH   SOLE   0 0 0
Bristol-Myers Squibb COM 110122108 3,406 50,980 SH   SOLE   0 0 0
CSX COM 126408103 565 17,603 SH   SOLE   0 0 0
Canadian Nat. Railway COM 136375102 1,163 11,025 SH   SOLE   0 0 0
Carrier Global COM 14448C104 261 5,378 SH   SOLE   0 0 0
Caterpillar Inc COM 149123101 251 1,155 SH   SOLE   0 0 0
Charter Communications COM 16119P108 2,327 3,226 SH   SOLE   0 0 0
Check Pt Software Tech COM M22465104 295 2,540 SH   SOLE   0 0 0
Chevron COM 166764100 2,269 21,659 SH   SOLE   0 0 0
Chubb LTD F COM H1467J104 431 2,712 SH   SOLE   0 0 0
Church & Dwight COM 171340102 914 10,730 SH   SOLE   0 0 0
Cintas COM 172908105 475 1,244 SH   SOLE   0 0 0
Cisco Systems Inc COM 17275R102 507 9,560 SH   SOLE   0 0 0
Citigroup Inc COM 172967101 853 12,061 SH   SOLE   0 0 0
Coca-Cola COM 191216100 4,751 87,797 SH   SOLE   0 0 0
Colgate Palmolive COM 194162103 2,644 32,504 SH   SOLE   0 0 0
Comcast A COM 20030N101 18,990 333,033 SH   SOLE   0 0 0
Conocophillips COM 20825C104 314 5,162 SH   SOLE   0 0 0
Corteva Inc COM 22052L104 293 6,609 SH   SOLE   0 0 0
Costco Wholesale COM 22160K105 2,132 5,388 SH   SOLE   0 0 0
Curaegis Technologies Inc COM 891479107 0 12,000 SH   SOLE   0 0 0
D R Horton Inc COM 23331A109 838 9,268 SH   SOLE   0 0 0
Deere And Co COM 244199105 847 2,400 SH   SOLE   0 0 0
Diageo (Guinness) COM 25243q205 1,464 7,639 SH   SOLE   0 0 0
Discovery Holding A COM 25470F104 16,367 533,475 SH   SOLE   0 0 0
Disney COM 254687106 13,905 79,111 SH   SOLE   0 0 0
Dow Chemical COM 260543103 396 6,253 SH   SOLE   0 0 0
Eaton Corp COM 278058102 1,898 12,808 SH   SOLE   0 0 0
Ecolab Inc COM 278865100 556 2,700 SH   SOLE   0 0 0
Edwards Lifesciences COM 28176E108 9,591 92,608 SH   SOLE   0 0 0
Emerson Electric COM 291011104 550 5,720 SH   SOLE   0 0 0
Expeditors Int'l Of Wa COM 302130109 2,110 16,665 SH   SOLE   0 0 0
Exxon Mobil COM 302290101 5,521 87,523 SH   SOLE   0 0 0
Facebook COM 30303M102 11,064 31,819 SH   SOLE   0 0 0
Fedex COM 31428X106 4,193 14,055 SH   SOLE   0 0 0
Fiserv Inc Com COM 337738108 3,943 36,888 SH   SOLE   0 0 0
Gazprom PJSC Fadr ADR COM 368287207 266 35,000 SH   SOLE   0 0 0
General Electric COM 369604103 362 26,864 SH   SOLE   0 0 0
General Mills COM 370334104 254 4,162 SH   SOLE   0 0 0
Goldman Sachs COM 38141G104 7,948 20,943 SH   SOLE   0 0 0
Home Depot COM 437076102 8,154 25,571 SH   SOLE   0 0 0
Honeywell Int'l COM 438516106 6,104 27,828 SH   SOLE   0 0 0
Humana Inc Com COM 444859102 276 623 SH   SOLE   0 0 0
Idexx Labs COM 45168D104 1,187 1,880 SH   SOLE   0 0 0
Illumina Inc COM 452327109 795 1,680 SH   SOLE   0 0 0
Immunogen Inc COM 45253H101 582 88,300 SH   SOLE   0 0 0
Intel COM 458140100 10,949 195,030 SH   SOLE   0 0 0
Intuit Inc COM 461202103 34,845 71,087 SH   SOLE   0 0 0
J.P. Morgan Chase COM 616880100 15,997 102,850 SH   SOLE   0 0 0
Johnson & Johnson COM 478160104 8,654 52,534 SH   SOLE   0 0 0
Kimberly Clark COM 494368103 577 4,315 SH   SOLE   0 0 0
Kinder Morgan Inc. COM 49456B101 2,185 119,851 SH   SOLE   0 0 0
L3 Harris Technologies Inc COM 502431109 6,126 28,340 SH   SOLE   0 0 0
Liberty Media Corp Del Com A S COM 531229409 369 7,925 SH   SOLE   0 0 0
Lilly (eli) COM 532457108 546 2,380 SH   SOLE   0 0 0
Lockheed Martin COM 539830109 3,526 9,318 SH   SOLE   0 0 0
Lowes COM 548661107 356 1,833 SH   SOLE   0 0 0
Markel Corp Holding Co COM 905399101 411 346 SH   SOLE   0 0 0
Marriott Intl New A COM 571903202 1,643 12,038 SH   SOLE   0 0 0
Mastercard Inc COM 57636q104 12,379 33,908 SH   SOLE   0 0 0
McDonalds COM 580135101 4,618 19,991 SH   SOLE   0 0 0
Medtronic PLC F COM 585055106 1,067 8,595 SH   SOLE   0 0 0
Merck COM 589331107 1,601 20,585 SH   SOLE   0 0 0
Microsoft COM 594918104 48,051 177,376 SH   SOLE   0 0 0
Moody's Corp COM 615369105 344 949 SH   SOLE   0 0 0
Morgan Stanley COM 617446448 4,756 51,867 SH   SOLE   0 0 0
New York Cmnty Bank COM 649445103 117 10,638 SH   SOLE   0 0 0
Newmont Mining COM 651639106 868 13,700 SH   SOLE   0 0 0
Nike Inc Class B COM 654106103 861 5,572 SH   SOLE   0 0 0
Norfolk Southern COM 655844108 5,142 19,374 SH   SOLE   0 0 0
Otis Worldwide COM 913017109 216 2,645 SH   SOLE   0 0 0
PayPal COM 98419Q101 364 1,249 SH   SOLE   0 0 0
Paychex COM 704326107 11,143 103,846 SH   SOLE   0 0 0
Pepsico Inc. COM 713448108 2,802 18,911 SH   SOLE   0 0 0
Pfizer COM 717081103 1,195 30,508 SH   SOLE   0 0 0
Philip Morris Int'l COM 02209S103 439 4,433 SH   SOLE   0 0 0
Phillips 66 COM 718546104 1,913 22,296 SH   SOLE   0 0 0
Procter & Gamble COM 742718109 7,124 52,795 SH   SOLE   0 0 0
Qualcomm COM 747525103 21,269 148,804 SH   SOLE   0 0 0
Raytheon Technologies COM 75513E101 4,892 57,346 SH   SOLE   0 0 0
Salesforce.com Inc COM 75513E101 729 2,985 SH   SOLE   0 0 0
Scotts Miracle Grow COM 810186106 252 1,315 SH   SOLE   0 0 0
Sherwin Williams COM 824348106 10,053 36,900 SH   SOLE   0 0 0
Starbucks Coffee COM 855244109 417 3,726 SH   SOLE   0 0 0
Stryker COM 863667101 1,390 5,352 SH   SOLE   0 0 0
Sysco COM 871829107 3,205 41,219 SH   SOLE   0 0 0
TC Energy Corporation COM 89353D107 5,471 110,480 SH   SOLE   0 0 0
TPI Composites Inc COM 87266J104 274 5,660 SH   SOLE   0 0 0
Texas Instruments COM 882508104 8,882 46,189 SH   SOLE   0 0 0
Thermo Fisher Scientific COM 883556102 16,742 33,188 SH   SOLE   0 0 0
TriNet Group Inc COM 896288107 1,520 20,965 SH   SOLE   0 0 0
Union Pacific COM 907818108 22,908 104,159 SH   SOLE   0 0 0
United Healthcare COM 910581107 506 1,263 SH   SOLE   0 0 0
United Parcel Service COM 911312106 7,481 35,971 SH   SOLE   0 0 0
Verizon Comm. COM 92343V104 1,996 35,624 SH   SOLE   0 0 0
Vertex Pharmaceuticals COM 92532F100 646 3,204 SH   SOLE   0 0 0
Visa COM 92826C839 27,447 117,385 SH   SOLE   0 0 0
Walgreens Boots Alliance COM 931422109 314 5,961 SH   SOLE   0 0 0
Wells Fargo & Co. COM 949746101 5,519 121,862 SH   SOLE   0 0 0