Ticker	Issuer	Shares	Value	%	Share Price	Est. Cost/Share	Unrealized @ Report Date	Class	CUSIP
MA	Mastercard	151,742	$41.21M	6.0%	$271.57 *	$72.81	+265.5%	COMM	57636Q104
ADP	Automatic Data Processing	206,910	$33.4M	4.9%	$161.42 *	$45.45	+216.8%	COMM	053015103
SYK	Stryker	120,828	$26.14M	3.8%	$216.30 *	$64.14	+212.1%	COMM	863667101
ECL	Ecolab	124,976	$24.75M	3.6%	$198.04 *	$74.34	+151.8%	COMM	278865100
TJX	TJX Companies	433,775	$24.18M	3.5%	$55.74 *	$33.83	+48.1%	COMM	872540109
AAPL	Apple	101,138	$22.65M	3.3%	$223.97 *	$18.62	+169.8%	COMM	037833100
NKE	NIKE 'B'	222,639	$20.91M	3.1%	$93.92 *	$42.79	+84.1%	COMM	654106103
MSFT	Microsoft	140,544	$19.54M	2.9%	$139.03 *	$39.65	+227.6%	COMM	594918104
MKC	McCormick	118,615	$18.54M	2.7%	$156.30 *	$29.42	+141.0%	COMM	579780206
FISV	Fiserv	173,459	$17.97M	2.6%	$103.59	$46.32	+120.4%	COMM	337738108
MCD	McDonald's	78,999	$16.96M	2.5%	$214.71 *	$72.45	+155.0%	COMM	580135101
ABT	Abbott Labs	190,438	$15.93M	2.3%	$83.67 *	$29.72	+156.0%	COMM	002824100
CHD	Church & Dwight	210,824	$15.86M	2.3%	$75.24 *	$35.05	+100.3%	COMM	171340102
JNJ	Johnson & Johnson	117,567	$15.21M	2.2%	$129.38 *	$62.43	+76.2%	COMM	478160104
NEE	NextEra Energy	54,814	$12.77M	1.9%	$232.99 *	$23.47	+97.0%	COMM	65339F101
DHR	Danaher	85,862	$12.4M	1.8%	$144.43 *	$45.56	+167.2%	COMM	235851102
INTU	Intuit	45,708	$12.16M	1.8%	$265.95	$57.59	+358.4%	COMM	461202103
PG	Procter & Gamble	94,590	$11.77M	1.7%	$124.38 *	$57.11	+76.8%	COMM	742718109
KO	Coca-Cola	207,343	$11.29M	1.7%	$54.44 *	$27.85	+57.8%	COMM	191216100
AMT	American Tower	46,294	$10.24M	1.5%	$221.13 *	$88.53	+107.1%	COMM	03027X100
BR	Broadridge Financial Solutions	78,614	$9.782M	1.4%	$124.43 *	$52.41	+120.2%	COMM	11133T103
BDX	Becton, Dickinson	36,113	$9.135M	1.3%	$252.96 *	$169.88	+31.6%	COMM	075887109
DIS	Disney, Walt	69,198	$9.018M	1.3%	$130.32 *	$92.14	+45.7%	COMM	254687106
FDS	FactSet Research Systems	37,073	$9.008M	1.3%	$242.98 *	$93.65	+178.6%	COMM	303075105
PEP	PepsiCo	64,410	$8.831M	1.3%	$137.11 *	$56.78	+92.6%	COMM	713448108
XOM	ExxonMobil	124,161	$8.767M	1.3%	$70.61 *	$53.89	-0.2%	COMM	30231G102
BF/B	Brown-Forman 'B'	130,112	$8.168M	1.2%	$62.78 *	$32.20	+62.4%	COMM	115637209
CL	Colgate-Palmolive	110,360	$8.113M	1.2%	$73.51 *	$44.45	+40.7%	COMM	194162103
ABBV	AbbVie	105,388	$7.98M	1.2%	$75.72 *	$27.98	+87.9%	COMM	00287Y109
IDXX	IDEXX Labs	26,930	$7.323M	1.1%	$271.93 *	$66.90	+316.0%	COMM	45168D104
—	United Technologies	53,154	$7.257M	1.1%	$136.53	$95.26	—	COMM	913017109
GOOGL	Alphabet Class A	5,857	$7.152M	1.0%	$1221.10 *	$43.20	+36.1%	COMM	02079K305
ACN	Accenture 'A'	36,704	$7.06M	1.0%	$192.35 *	$81.04	+117.8%	COMM	G1151C101
SYY	Sysco	82,376	$6.541M	1.0%	$79.40 *	$24.84	+148.7%	COMM	871829107
ITW	Illinois Tool Works	41,719	$6.529M	1.0%	$156.50 *	$64.66	+101.3%	COMM	452308109
HD	Home Depot	27,951	$6.485M	0.9%	$232.01 *	$109.63	+70.7%	COMM	437076102
PFF	iShares S&P US Pfd ETF	157,522	$5.912M	0.9%	$37.53	$37.88	—	DEBT	464288687
USB	US Bancorp	89,217	$4.937M	0.7%	$55.34 *	$24.69	+66.6%	COMM	902973304
WEX	WEX	23,955	$4.841M	0.7%	$202.09 *	$115.44	+79.4%	COMM	96208T104
MPC	Marathon Petroleum	77,357	$4.699M	0.7%	$60.74 *	$37.57	+14.7%	COMM	56585A102
EL	Estee Lauder	23,434	$4.662M	0.7%	$198.94 *	$81.29	+116.6%	COMM	518439104
HON	Honeywell Int'l	27,397	$4.636M	0.7%	$169.22 *	$112.81	+23.5%	COMM	438516106
LLY	Lilly, Eli	40,053	$4.479M	0.7%	$111.83 *	$43.48	+136.2%	COMM	532457108
MRK	Merck	50,574	$4.257M	0.6%	$84.17 *	$41.06	+59.5%	COMM	58933Y105
SBUX	Starbucks	47,820	$4.228M	0.6%	$88.41 *	$41.66	+93.6%	COMM	855244109
PAYX	Paychex	50,695	$4.196M	0.6%	$82.77 *	$26.63	+159.6%	COMM	704326107
AMZN	Amazon.com	2,399	$4.164M	0.6%	$1735.72 *	$29.06	+219.1%	COMM	023135106
WSO	Watsco	23,785	$4.024M	0.6%	$169.18 *	$152.90	+6.1%	COMM	942622200
BRK/B	Berkshire Hathaway 'B'	18,839	$3.919M	0.6%	$208.03	$158.63	+29.9%	COMM	084670702
VZ	Verizon Communications	64,202	$3.875M	0.6%	$60.36 *	$27.59	+46.6%	COMM	92343V104
APD	Air Products & Chemicals	17,457	$3.873M	0.6%	$221.86 *	$61.75	+211.8%	COMM	009158106
WMT	Walmart	31,653	$3.757M	0.6%	$118.69 *	$20.35	+69.3%	COMM	931142103
QCOM	QUALCOMM	48,810	$3.723M	0.5%	$76.28 *	$46.43	+40.0%	COMM	747525103
CSCO	Cisco Systems	65,915	$3.257M	0.5%	$49.41 *	$15.33	+179.1%	COMM	17275R102
BCPC	Balchem	32,525	$3.226M	0.5%	$99.19 *	$48.33	+90.0%	COMM	057665200
INTC	Intel	56,186	$2.895M	0.4%	$51.53 *	$19.28	+123.2%	COMM	458140100
LOW	Lowe's	26,147	$2.875M	0.4%	$109.96 *	$32.88	+186.0%	COMM	548661107
UNP	Union Pacific	17,580	$2.848M	0.4%	$162.00 *	$74.60	+95.5%	COMM	907818108
T	AT&T	74,131	$2.805M	0.4%	$37.84 *	$12.52	+35.8%	COMM	00206R102
JKHY	Jack Henry & Associates	19,020	$2.776M	0.4%	$145.95 *	$57.63	+127.7%	COMM	426281101
EW	Edwards Lifesciences	12,155	$2.673M	0.4%	$219.91 *	$41.96	+67.4%	COMM	28176E108
—	Walgreens Boots Alliance	47,953	$2.652M	0.4%	$55.30	$76.03	—	COMM	931427108
V	Visa	15,344	$2.639M	0.4%	$171.99	$89.07	+91.2%	COMM	92826C839
EMR	Emerson Electric	39,442	$2.637M	0.4%	$66.86 *	$40.07	+35.6%	COMM	291011104
NVO	Novo Nordisk ADR	43,675	$2.258M	0.3%	$51.70	$68.55	—	COMM	670100205
AMGN	Amgen	11,563	$2.238M	0.3%	$193.55 *	$73.61	+114.6%	COMM	031162100
PFE	Pfizer	57,835	$2.078M	0.3%	$35.93 *	$18.18	+48.6%	COMM	717081103
GWW	Grainger, W.W.	6,297	$1.871M	0.3%	$297.13 *	$204.51	+25.5%	COMM	384802104
WELL	Welltower	20,625	$1.87M	0.3%	$90.67 *	$54.00	+32.5%	COMM	95040Q104
ZTS	Zoetis	14,052	$1.751M	0.3%	$124.61 *	$67.02	+70.9%	COMM	98978V103
FAST	Fastenal	51,500	$1.683M	0.2%	$32.68 *	$11.26	+17.5%	COMM	311900104
DE	Deere & Company	9,629	$1.624M	0.2%	$168.66 *	$68.53	+113.1%	COMM	244199105
—	Weingarten Realty	54,648	$1.592M	0.2%	$29.13	$35.14	—	COMM	948741103
EXPD	Expeditors Int'l	20,774	$1.543M	0.2%	$74.28 *	$32.01	+112.0%	COMM	302130109
FTV	Fortive	22,014	$1.509M	0.2%	$68.55 *	$36.82	+21.9%	COMM	34959J108
MMM	3M Company	9,144	$1.503M	0.2%	$164.37 *	$75.07	+47.4%	COMM	88579Y101
PPG	PPG Industries	12,457	$1.476M	0.2%	$118.49 *	$91.06	+11.8%	COMM	693506107
—	CDK Global	30,166	$1.451M	0.2%	$48.10	$59.68	—	COMM	12508E101
ISRG	Intuitive Surgical	2,670	$1.442M	0.2%	$540.07 *	$101.54	+70.3%	COMM	46120E602
RHHBY	Roche Holding Ltd ADR	38,350	$1.398M	0.2%	$36.45	$49.05	—	COMM	771195104
—	Tiffany	14,650	$1.357M	0.2%	$92.63	$75.16	—	COMM	886547108
IBM	IBM	9,230	$1.342M	0.2%	$145.40 *	$118.23	-13.3%	COMM	459200101
ULTA	Ulta Beauty	5,092	$1.276M	0.2%	$250.59 *	$246.06	+24.7%	COMM	90384S303
GILD	Gilead Sciences	19,710	$1.249M	0.2%	$63.37 *	$55.92	-8.8%	COMM	375558103
PM	Philip Morris Int'l	15,986	$1.214M	0.2%	$75.94 *	$49.88	+13.7%	COMM	718172109
FLO	Flowers Foods	48,225	$1.115M	0.2%	$23.12 *	$13.95	+27.7%	COMM	343498101
HP	Helmerich & Payne	27,470	$1.101M	0.2%	$40.08 *	$62.85	-29.8%	COMM	423452101
EOG	EOG Resources	12,409	$921K	0.1%	$74.22 *	$60.19	+2.2%	COMM	26875P101
EQR	Equity Residential Properties	10,220	$882K	0.1%	$86.30 *	$31.42	+103.7%	COMM	29476L107
BFS	Saul Centers	15,835	$863K	0.1%	$54.50	$46.35	—	COMM	804395101
ROST	Ross Stores	7,805	$857K	0.1%	$109.80 *	$38.79	+155.3%	COMM	778296103
HSY	Hershey Company	5,470	$848K	0.1%	$155.03 *	$72.89	+78.6%	COMM	427866108
CSX	CSX	12,156	$842K	0.1%	$69.27 *	$6.66	+220.5%	COMM	126408103
—	Kellogg	13,000	$837K	0.1%	$64.38 *	$38.92	+16.5%	COMM	487836108
EPAM	EPAM Systems	4,500	$820K	0.1%	$182.22 *	$149.89	+25.6%	COMM	29414B104
CTSH	Cognizant Technology	13,350	$805K	0.1%	$60.30 *	$48.24	+19.0%	COMM	192446102
—	Celgene	8,000	$794K	0.1%	$99.25	$102.98	—	COMM	151020104
CVX	Chevron	6,397	$759K	0.1%	$118.65 *	$74.33	+23.1%	COMM	166764100
—	Raytheon	3,768	$739K	0.1%	$196.13	$187.85	—	COMM	755111507
BMY	Bristol-Myers Squibb	14,436	$732K	0.1%	$50.71 *	$45.87	-19.8%	COMM	110122108
BAC	Bank of America	24,452	$713K	0.1%	$29.16 *	$23.90	+2.8%	COMM	060505104
SHW	Sherwin-Williams	1,165	$641K	0.1%	$550.21 *	$136.92	+17.4%	COMM	824348106
CVS	CVS Health	9,835	$620K	0.1%	$63.04 *	$57.27	-15.5%	COMM	126650100
ALCO	Alico	17,866	$608K	0.1%	$34.03 *	$27.33	+1.5%	COMM	016230104
HSIC	Henry Schein	9,504	$604K	0.1%	$63.55	$52.84	+22.3%	COMM	806407102
JPM	JPMorgan Chase	4,913	$578K	0.1%	$117.65 *	$50.65	+87.7%	COMM	46625H100
—	Fortune Brands Home & Security	10,347	$566K	0.1%	$54.70	$66.64	—	COMM	34964c106
TRMB	Trimble	13,835	$537K	0.1%	$38.81 *	$29.78	+35.1%	COMM	896239100
—	Marathon Oil	43,588	$535K	0.1%	$12.27	$13.56	—	COMM	565849106
HPQ	HP	27,700	$524K	0.1%	$18.92 *	$11.22	+40.3%	COMM	40434L105
—	HCP	14,600	$520K	0.1%	$35.62	$43.65	—	COMM	40414L109
NOC	Northrop Grumman	1,366	$512K	0.1%	$374.82 *	$122.55	+160.0%	COMM	666807102
DUK	Duke Energy	5,180	$497K	0.1%	$95.95 *	$42.75	+65.0%	COMM	26441C204
XRAY	Dentsply Sirona	8,300	$442K	0.1%	$53.25	$59.08	-9.1%	COMM	24906P109
SLB	Schlumberger	12,896	$441K	0.1%	$34.20 *	$55.08	-43.8%	COMM	806857108
LKQ	LKQ	13,500	$425K	0.1%	$31.48 *	$24.16	+1.7%	COMM	501889208
HPE	Hewlett Packard Enterprise	27,700	$420K	0.1%	$15.16 *	$6.50	+78.3%	COMM	42824C109
SEIC	SEI Investments	7,000	$415K	0.1%	$59.29 *	$26.47	+100.8%	COMM	784117103
PGR	Progressive	5,228	$404K	0.1%	$77.28 *	$29.31	+120.5%	COMM	743315103
PYPL	Paypal Holdings	3,820	$396K	0.1%	$103.66 *	$99.60	+10.3%	COMM	70450Y103
TMO	Thermo Fisher Scientific	1,349	$393K	0.1%	$291.33 *	$230.43	+22.2%	COMM	883556102
COST	Costco Wholesale	1,359	$392K	0.1%	$288.45 *	$142.82	+79.5%	COMM	22160K105
LHX	L3 Harris Technologies	1,830	$382K	0.1%	$208.74 *	$180.55	0.0%	COMM	502431109
GPC	Genuine Parts	3,785	$377K	0.1%	$99.60 *	$62.69	+27.3%	COMM	372460105
MDLZ	Mondelez Int'l	6,807	$377K	0.1%	$55.38 *	$28.45	+64.1%	COMM	609207105
—	General Electric	41,725	$373K	0.1%	$8.94	$17.79	—	COMM	369604103
NSC	Norfolk Southern	2,005	$360K	0.1%	$179.55 *	$107.13	+50.8%	COMM	655844108
CAT	Caterpillar	2,853	$360K	0.1%	$126.18 *	$62.12	+78.8%	COMM	149123101
ILMN	Illumina	1,075	$327K	0.0%	$304.19 *	$294.50	+0.1%	COMM	452327109
ORLY	O'Reilly Automotive	800	$319K	0.0%	$398.75 *	$24.19	+6.8%	COMM	67103H107
BRK/A	Berkshire Hathaway 'A'	1	$312K	0.0%	$312000.00	$199512.94	+55.1%	COMM	084670108
TECH	Bio-Techne	1,500	$294K	0.0%	$196.00 *	$33.97	+43.5%	COMM	09073M104
WM	Waste Management	2,450	$282K	0.0%	$115.10 *	$78.27	+34.3%	COMM	94106L109
—	Versum Materials	5,178	$274K	0.0%	$52.92	$50.41	—	COMM	92532W103
CMI	Cummins	1,650	$268K	0.0%	$162.42 *	$89.89	+51.4%	COMM	231021106
CTAS	Cintas	1,000	$268K	0.0%	$268.00 *	$45.33	+32.2%	COMM	172908105
COP	ConocoPhillips	4,663	$266K	0.0%	$57.04 *	$44.54	+1.7%	COMM	20825C104
—	Stericycle	5,175	$264K	0.0%	$51.01	$112.40	—	COMM	858912108
MO	Altria	6,371	$261K	0.0%	$40.97 *	$25.84	+6.8%	COMM	02209S103
FPE	1st Trust Pfd Sec & Inc ETF	13,000	$256K	0.0%	$19.69	$19.08	—	DEBT	33739E108
CNMD	Conmed	2,625	$252K	0.0%	$96.00 *	$68.36	+29.8%	COMM	207410101
FDX	FedEx	1,686	$245K	0.0%	$145.31	$207.53	-31.0%	COMM	31428X106
INGR	Ingredion	3,000	$245K	0.0%	$81.67 *	$80.34	-1.2%	COMM	457187102
PSX	Phillips 66	2,296	$235K	0.0%	$102.35 *	$65.92	+17.2%	COMM	718546104
ORCL	Oracle	4,254	$234K	0.0%	$55.01 *	$37.56	+34.1%	COMM	68389X105
PRAA	PRA Group	6,850	$231K	0.0%	$33.72 *	$31.83	0.0%	COMM	69354N106
—	Noble Energy	9,900	$222K	0.0%	$22.42	$24.75	—	COMM	655044105
KIM	Kimco Realty	10,650	$222K	0.0%	$20.85 *	$12.78	+11.5%	COMM	49446R109
DD	DuPont de Nemours	3,093	$221K	0.0%	$71.45 *	$27.22	-4.8%	COMM	26614N102
ALL	Allstate	2,000	$217K	0.0%	$108.50 *	$83.49	+7.4%	COMM	020002101
RCL	Royal Caribbean Cruises	2,000	$217K	0.0%	$108.50 *	$108.13	-2.1%	COMM	V7780T103
WY	Weyerhaeuser	7,728	$214K	0.0%	$27.69 *	$19.29	+6.4%	COMM	962166104
TXN	Texas Instruments	1,602	$207K	0.0%	$129.21 *	$102.86	0.0%	COMM	882508104