Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
MA	Mastercard	152,894	$28.84M	5.2%	$70.99	+168.9%	COMM	57636Q104
ADP	Automatic Data Processing	209,924	$27.52M	5.0%	$45.45	+166.6%	COMM	053015103
SYK	Stryker	122,399	$19.19M	3.5%	$61.57	+151.4%	COMM	863667101
ECL	Ecolab	128,303	$18.91M	3.4%	$74.34	+90.3%	COMM	278865100
TJX	TJX Companies	421,966	$18.88M	3.4%	$33.61	+36.5%	COMM	872540109
MKC	McCormick	117,405	$16.35M	2.9%	$29.04	+115.6%	COMM	579780206
NKE	NIKE 'B'	219,815	$16.3M	2.9%	$42.11	+61.8%	COMM	654106103
AAPL	Apple	101,772	$16.05M	2.9%	$18.35	+150.8%	COMM	037833100
JNJ	Johnson & Johnson	118,794	$15.33M	2.8%	$62.43	+82.8%	COMM	478160104
ABT	Abbott Labs	195,951	$14.17M	2.6%	$29.72	+109.1%	COMM	002824100
MCD	McDonald's	79,759	$14.16M	2.5%	$72.45	+107.2%	COMM	580135101
CHD	Church & Dwight	214,418	$14.1M	2.5%	$35.05	+65.8%	COMM	171340102
FISV	Fiserv	171,334	$12.59M	2.3%	$45.95	+68.2%	COMM	337738108
MSFT	Microsoft	120,862	$12.28M	2.2%	$26.70	+274.5%	COMM	594918104
ABBV	AbbVie	113,911	$10.5M	1.9%	$27.98	+131.6%	COMM	00287Y109
KO	Coca-Cola	215,739	$10.21M	1.8%	$27.85	+37.8%	COMM	191216100
NEE	NextEra Energy	54,299	$9.438M	1.7%	$23.20	+58.0%	COMM	65339F101
INTU	Intuit	46,833	$9.219M	1.7%	$57.59	+244.7%	COMM	461202103
PG	Procter & Gamble	95,931	$8.818M	1.6%	$57.11	+30.9%	COMM	742718109
XOM	ExxonMobil	128,786	$8.782M	1.6%	$53.89	+4.6%	COMM	30231G102
DHR	Danaher	82,325	$8.489M	1.5%	$43.17	+103.6%	COMM	235851102
FDS	FactSet Research Systems	38,085	$7.622M	1.4%	$93.65	+119.4%	COMM	303075105
PEP	PepsiCo	66,595	$7.357M	1.3%	$56.78	+59.7%	COMM	713448108
CL	Colgate-Palmolive	121,990	$7.261M	1.3%	$44.45	+19.0%	COMM	194162103
AMT	American Tower	45,259	$7.16M	1.3%	$87.41	+48.1%	COMM	03027X100
DIS	Disney, Walt	61,380	$6.73M	1.2%	$89.23	+22.3%	COMM	254687106
BDX	Becton, Dickinson	28,316	$6.38M	1.1%	$157.45	+32.2%	COMM	075887109
BR	Broadridge Financial Solutions	64,909	$6.247M	1.1%	$43.51	+120.1%	COMM	11133T103
BF/B	Brown-Forman 'B'	131,292	$6.247M	1.1%	$31.95	+31.7%	COMM	115637209
GOOGL	Alphabet Class A	5,454	$5.699M	1.0%	$42.42	+26.5%	COMM	02079K305
—	United Technologies	53,126	$5.657M	1.0%	$95.26	—	COMM	913017109
IDXX	IDEXX Labs	29,390	$5.467M	1.0%	$66.90	+206.5%	COMM	45168D104
ITW	Illinois Tool Works	42,690	$5.408M	1.0%	$63.75	+73.3%	COMM	452308109
SYY	Sysco	84,438	$5.291M	1.0%	$24.84	+124.4%	COMM	871829107
ACN	Accenture 'A'	37,004	$5.218M	0.9%	$81.04	+76.3%	COMM	G1151C101
—	Celgene	78,360	$5.022M	0.9%	$102.98	—	COMM	151020104
LLY	Lilly, Eli	40,217	$4.654M	0.8%	$43.48	+133.1%	COMM	532457108
MPC	Marathon Petroleum	77,307	$4.562M	0.8%	$37.50	+44.7%	COMM	56585A102
USB	US Bancorp	97,665	$4.463M	0.8%	$24.69	+55.0%	COMM	902973304
—	Walgreens Boots Alliance	64,553	$4.411M	0.8%	$76.03	—	COMM	931427108
HD	Home Depot	24,473	$4.205M	0.8%	$100.81	+49.2%	COMM	437076102
MRK	Merck	52,079	$3.979M	0.7%	$41.06	+37.6%	COMM	58933Y105
VZ	Verizon Communications	65,469	$3.681M	0.7%	$27.59	+40.0%	COMM	92343V104
PAYX	Paychex	52,070	$3.392M	0.6%	$26.63	+106.8%	COMM	704326107
WSO	Watsco	23,350	$3.249M	0.6%	$152.96	-0.4%	COMM	942622200
PFF	iShares S&P US Pfd ETF	94,305	$3.228M	0.6%	$38.75	—	DEBT	464288687
BRK/B	Berkshire Hathaway 'B'	15,609	$3.187M	0.6%	$149.94	+39.3%	COMM	084670702
HON	Honeywell Int'l	24,085	$3.182M	0.6%	$110.80	+6.2%	COMM	438516106
CSCO	Cisco Systems	72,769	$3.153M	0.6%	$15.33	+140.8%	COMM	17275R102
WEX	WEX	20,890	$2.926M	0.5%	$105.91	+55.4%	COMM	96208T104
AMZN	Amazon.com	1,944	$2.92M	0.5%	$15.26	+445.0%	COMM	023135106
SBUX	Starbucks	45,145	$2.907M	0.5%	$40.28	+33.2%	COMM	855244109
EL	Estee Lauder	22,337	$2.906M	0.5%	$78.44	+58.2%	COMM	518439104
WMT	Walmart	31,153	$2.902M	0.5%	$20.13	+42.9%	COMM	931142103
APD	Air Products & Chemicals	17,857	$2.858M	0.5%	$61.75	+115.7%	COMM	009158106
QCOM	QUALCOMM	49,410	$2.812M	0.5%	$46.43	+9.5%	COMM	747525103
BCPC	Balchem	34,375	$2.693M	0.5%	$48.33	+79.0%	COMM	057665200
UNP	Union Pacific	19,230	$2.658M	0.5%	$74.60	+69.5%	COMM	907818108
LOW	Lowe's	28,275	$2.611M	0.5%	$32.88	+157.4%	COMM	548661107
INTC	Intel	54,746	$2.569M	0.5%	$18.63	+115.7%	COMM	458140100
PFE	Pfizer	57,813	$2.524M	0.5%	$17.94	+67.4%	COMM	717081103
EMR	Emerson Electric	41,502	$2.48M	0.4%	$40.07	+42.2%	COMM	291011104
JKHY	Jack Henry & Associates	19,295	$2.441M	0.4%	$57.63	+126.3%	COMM	426281101
CTSH	Cognizant Technology	37,837	$2.402M	0.4%	$48.08	+30.2%	COMM	192446102
FDX	FedEx	13,987	$2.257M	0.4%	$211.39	-12.1%	COMM	31428X106
AMGN	Amgen	11,529	$2.244M	0.4%	$73.61	+113.0%	COMM	031162100
NVO	Novo Nordisk ADR	47,525	$2.189M	0.4%	$68.55	—	COMM	670100205
MMM	3M Company	11,064	$2.108M	0.4%	$75.07	+70.8%	COMM	88579Y101
T	AT&T	68,002	$1.941M	0.3%	$12.27	+14.2%	COMM	00206R102
V	Visa	13,791	$1.82M	0.3%	$81.21	+61.8%	COMM	92826C839
GWW	Grainger, W.W.	6,332	$1.788M	0.3%	$204.51	+32.3%	COMM	384802104
EW	Edwards Lifesciences	11,470	$1.757M	0.3%	$41.07	+23.2%	COMM	28176E108
HP	Helmerich & Payne	34,270	$1.643M	0.3%	$62.85	-2.3%	COMM	423452101
—	CDK Global	32,275	$1.545M	0.3%	$59.68	—	COMM	12508E101
DE	Deere & Company	10,150	$1.514M	0.3%	$68.53	+92.3%	COMM	244199105
EXPD	Expeditors Int'l	21,774	$1.483M	0.3%	$32.01	+100.9%	COMM	302130109
—	Weingarten Realty	59,048	$1.465M	0.3%	$35.14	—	COMM	948741103
FAST	Fastenal	27,550	$1.441M	0.3%	$8.79	+28.2%	COMM	311900104
WELL	Welltower	20,625	$1.432M	0.3%	$54.00	+0.2%	COMM	95040Q104
GILD	Gilead Sciences	22,101	$1.382M	0.2%	$55.92	-5.2%	COMM	375558103
FTV	Fortive	20,313	$1.374M	0.2%	$35.90	+27.0%	COMM	34959J108
ISRG	Intuitive Surgical	2,845	$1.363M	0.2%	$101.54	+66.9%	COMM	46120E602
PPG	PPG Industries	12,457	$1.273M	0.2%	$91.06	-0.7%	COMM	693506107
RHHBY	Roche Holding Ltd ADR	39,250	$1.22M	0.2%	$49.05	—	COMM	771195104
EOG	EOG Resources	13,830	$1.206M	0.2%	$60.19	+34.0%	COMM	26875P101
—	Tiffany	14,650	$1.179M	0.2%	$75.16	—	COMM	886547108
CVS	CVS Health	16,682	$1.093M	0.2%	$57.27	+3.7%	COMM	126650100
PM	Philip Morris Int'l	15,634	$1.044M	0.2%	$49.72	+15.2%	COMM	718172109
IBM	IBM	9,157	$1.041M	0.2%	$118.23	-25.6%	COMM	459200101
FLO	Flowers Foods	53,625	$990K	0.2%	$13.95	+3.0%	COMM	343498101
ZTS	Zoetis	10,750	$920K	0.2%	$54.54	+55.8%	COMM	98978V103
ULTA	Ulta Beauty	3,695	$905K	0.2%	$220.93	+25.1%	COMM	90384S303
HSIC	Henry Schein	10,104	$793K	0.1%	$52.84	+24.6%	COMM	806407102
BMY	Bristol-Myers Squibb	15,236	$792K	0.1%	$45.87	-10.7%	COMM	110122108
—	Kellogg	13,600	$775K	0.1%	$38.92	+19.2%	COMM	487836108
CSX	CSX	12,156	$755K	0.1%	$6.66	+213.5%	COMM	126408103
BFS	Saul Centers	15,835	$748K	0.1%	$46.35	—	COMM	804395101
ROST	Ross Stores	8,185	$681K	0.1%	$38.79	+117.4%	COMM	778296103
EQR	Equity Residential Properties	10,220	$675K	0.1%	$31.42	+63.4%	COMM	29476L107
CVX	Chevron	6,047	$658K	0.1%	$73.38	+15.5%	COMM	166764100
HCSG	Healthcare Services Group	15,850	$637K	0.1%	$28.60	+47.8%	COMM	421906108
—	Marathon Oil	43,588	$625K	0.1%	$13.56	—	COMM	565849106
HSY	Hershey Company	5,580	$598K	0.1%	$72.89	+23.5%	COMM	427866108
—	Raytheon	3,768	$578K	0.1%	$187.85	—	COMM	755111507
HPQ	HP	27,700	$567K	0.1%	$11.22	+62.6%	COMM	40434L105
ALCO	Alico	17,866	$527K	0.1%	$27.33	+4.3%	COMM	016230104
SLB	Schlumberger	14,146	$510K	0.1%	$55.08	-27.0%	COMM	806857108
—	General Electric	65,327	$495K	0.1%	$17.79	—	COMM	369604103
—	DowDupont	9,138	$489K	0.1%	$69.18	—	COMM	26078J100
JPM	JPMorgan Chase	4,933	$482K	0.1%	$48.47	+80.6%	COMM	46625H100
TRMB	Trimble	13,835	$455K	0.1%	$29.78	+23.5%	COMM	896239100
CAT	Caterpillar	3,553	$451K	0.1%	$60.35	+84.8%	COMM	149123101
DUK	Duke Energy	5,180	$447K	0.1%	$42.75	+49.4%	COMM	26441C204
—	HCP	15,500	$433K	0.1%	$43.65	—	COMM	40414L109
—	Fortune Brands Home & Security	10,347	$393K	0.1%	$66.64	—	COMM	34964c106
GPC	Genuine Parts	3,885	$373K	0.1%	$62.69	+28.4%	COMM	372460105
HPE	Hewlett Packard Enterprise	27,700	$366K	0.1%	$6.50	+83.5%	COMM	42824C109
COP	ConocoPhillips	5,735	$358K	0.1%	$44.54	+19.9%	COMM	20825C104
XRAY	Dentsply Sirona	8,900	$331K	0.1%	$59.08	-38.4%	COMM	24906P109
SEIC	SEI Investments	7,000	$323K	0.1%	$26.47	+80.5%	COMM	784117103
NSC	Norfolk Southern	2,105	$315K	0.1%	$107.13	+32.9%	COMM	655844108
NOC	Northrop Grumman	1,282	$314K	0.1%	$114.24	+114.9%	COMM	666807102
PGR	Progressive	5,200	$314K	0.1%	$29.31	+79.1%	COMM	743315103
MO	Altria	6,268	$310K	0.1%	$25.81	+28.3%	COMM	02209S103
BRK/A	Berkshire Hathaway 'A'	1	$306K	0.1%	$199512.94	+56.9%	COMM	084670108
COST	Costco Wholesale	1,374	$280K	0.1%	$142.82	+41.4%	COMM	22160K105
—	Stericycle	7,597	$279K	0.1%	$112.40	—	COMM	858912108
INGR	Ingredion	3,000	$274K	0.0%	$80.34	+24.6%	COMM	457187102
MDLZ	Mondelez Int'l	6,807	$272K	0.0%	$28.45	+25.8%	COMM	609207105
STT	State Street	3,899	$246K	0.0%	$61.78	-8.0%	COMM	857477103
PSX	Phillips 66	2,812	$242K	0.0%	$65.92	+11.1%	COMM	718546104
SHW	Sherwin-Williams	595	$234K	0.0%	$138.17	-8.4%	COMM	824348106
—	L3 Technologies	1,350	$234K	0.0%	$197.89	—	COMM	502413107
FPE	1st Trust Pfd Sec & Inc ETF	13,000	$233K	0.0%	$19.08	—	DEBT	33739E108
TMO	Thermo Fisher Scientific	1,036	$232K	0.0%	$226.20	+1.8%	COMM	883556102
CMI	Cummins	1,700	$227K	0.0%	$89.89	+30.7%	COMM	231021106
KDP	Keurig Dr. Pepper	8,675	$222K	0.0%	$19.52	+9.3%	COMM	49271V100
BKNG	Booking Holdings	128	$220K	0.0%	$1933.76	-6.7%	COMM	09857L108
WM	Waste Management	2,450	$218K	0.0%	$78.27	+1.8%	COMM	94106L109
TECH	Bio-Techne	1,500	$217K	0.0%	$33.97	+18.9%	COMM	09073M104
ORCL	Oracle	4,587	$207K	0.0%	$37.56	+14.9%	COMM	68389X105
D	Dominion Energy	2,800	$200K	0.0%	$53.23	0.0%	COMM	25746U109
KIM	Kimco Realty	10,650	$156K	0.0%	$12.78	-12.4%	COMM	49446R109