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 CO. COM 88579Y101 3,277 22,010 SH   SOLE   0 0 22,010
ABBOTT LABORATORIES COM 002824100 10,689 90,310 SH   SOLE   0 0 90,310
ABBVIE INC COM 00287Y109 2,856 17,615 SH   SOLE   0 0 17,615
ADOBE SYSTEMS INCORPORATED COM 00724F101 6,699 14,702 SH   SOLE   0 0 14,702
AFLAC INCORPORATED COM 001055102 219 3,400 SH   SOLE   0 0 3,400
AIR PRODUCTS & CHEMICALS COM 009158106 342 1,368 SH   SOLE   0 0 1,368
ALLSTATE CORPORATION COM 020002101 732 5,287 SH   SOLE   0 0 5,287
ALPHABET INC NON-VOTING CL C COM 02079K107 18,085 6,475 SH   SOLE   0 0 6,475
ALPHABET INC VOTING CL A COM 02079K305 1,402 504 SH   SOLE   0 0 504
ALTRIA GROUP COM 02209S103 230 4,400 SH   SOLE   0 0 4,400
AMAZON.COM INC COM 023135106 16,045 4,922 SH   SOLE   0 0 4,922
AMERICAN ELECTRIC POWER COM 025537101 292 2,922 SH   SOLE   0 0 2,922
AMERICAN EXPRESS INC COM 025816109 5,127 27,418 SH   SOLE   0 0 27,418
AMGEN INC COM 031162100 1,196 4,946 SH   SOLE   0 0 4,946
APPLE INC COM 037833100 30,353 173,833 SH   SOLE   0 0 173,833
ARCHER DANIELS MIDLAND CO COM 039483102 1,378 15,266 SH   SOLE   0 0 15,266
AT&T CORP NEW COM 00206R102 813 34,425 SH   SOLE   0 0 34,425
ATMOS ENERGY CORP COM 049560105 2,892 24,202 SH   SOLE   0 0 24,202
BANK OF AMERICA COM 060505104 1,793 43,503 SH   SOLE   0 0 43,503
BANK OF NEW YORK MELLON CORP COM 064058100 861 17,346 SH   SOLE   0 0 17,346
BECTON DICKINSON COM 075887109 12,230 45,979 SH   SOLE   0 0 45,979
BERKSHIRE HATHAWAY INC DEL CLA COM 084670108 4,231 8 SH   SOLE   0 0 8
BERKSHIRE HATHAWAY INC DEL CLA COM 084670702 1,548 4,385 SH   SOLE   0 0 4,385
BOEING COM 097023105 1,800 9,398 SH   SOLE   0 0 9,398
BRISTOL-MYERS SQUIBB COMPANY COM 110122108 1,099 15,048 SH   SOLE   0 0 15,048
C S X CORPORATION COM 126408103 942 25,151 SH   SOLE   0 0 25,151
CABLE ONE INC COM 12685J105 458 313 SH   SOLE   0 0 313
CARRIER GLOBAL COM 14448C104 569 12,405 SH   SOLE   0 0 12,405
CATERPILLAR INCORPORATED COM 149123101 8,137 36,517 SH   SOLE   0 0 36,517
CHEMOURS CO COM 163851108 20,652 656,023 SH   SOLE   0 0 656,023
CHEVRON CORP COM 166764100 8,494 52,162 SH   SOLE   0 0 52,162
CHURCH & DWIGHT CO INC COM 171340102 14,854 149,466 SH   SOLE   0 0 149,466
CINTAS CORP COM 172908105 228 535 SH   SOLE   0 0 535
CISCO SYSTEMS INC COM 17275R102 8,042 144,230 SH   SOLE   0 0 144,230
COCA-COLA COMPANY COM 191216100 2,554 41,186 SH   SOLE   0 0 41,186
COLGATE-PALMOLIVE COMPANY COM 194162103 429 5,652 SH   SOLE   0 0 5,652
COMCAST CORP NEW CL A COM 20030N101 368 7,867 SH   SOLE   0 0 7,867
CONOCOPHILLIPS COM 20825C104 483 4,834 SH   SOLE   0 0 4,834
CORNING INC. COM 219350105 834 22,600 SH   SOLE   0 0 22,600
CORTEVA INC COM 22052L104 58,664 1,020,593 SH   SOLE   0 0 1,020,593
CVS CAREMARK CORPORATION COM 126650100 922 9,111 SH   SOLE   0 0 9,111
DANAHER CORP COM 235851102 1,121 3,820 SH   SOLE   0 0 3,820
DEERE AND CO. COM 244199105 557 1,341 SH   SOLE   0 0 1,341
DENTSPLY SIRONA INC COM 24906P109 1,361 27,641 SH   SOLE   0 0 27,641
DISCOVER FINANCIAL SERVICES COM 254709108 343 3,111 SH   SOLE   0 0 3,111
DOMINION RESOURCES INC OF VA COM 25746U109 4,332 50,981 SH   SOLE   0 0 50,981
DOVER CORPORATION COM 260003108 398 2,535 SH   SOLE   0 0 2,535
DOW CHEMICAL COMPANY (THE) COM 260543103 67,274 1,055,774 SH   SOLE   0 0 1,055,774
DTE ENERGY COM 233331107 397 3,004 SH   SOLE   0 0 3,004
DU PONT (E.I.) DE NEMOURS & CO COM 263534109 65,530 890,595 SH   SOLE   0 0 890,595
DUKE ENERGY CORP COM 26441C204 1,518 13,596 SH   SOLE   0 0 13,596
ELI LILLY & CO COM 532457108 1,381 4,822 SH   SOLE   0 0 4,822
EMERSON ELECTRIC CO. COM 291011104 1,363 13,901 SH   SOLE   0 0 13,901
ENBRIDGE INC. COM 29250N105 1,123 24,373 SH   SOLE   0 0 24,373
ESSENTIAL UTILITIES INC COM 29670G102 9,043 176,863 SH   SOLE   0 0 176,863
EXXON MOBIL CORPORATION COM 30231G102 10,046 121,642 SH   SOLE   0 0 121,642
FEDERAL REALTY INV TR S B I COM 313745101 1,139 9,329 SH   SOLE   0 0 9,329
FEDEX CORP COM 31428X106 6,515 28,154 SH   SOLE   0 0 28,154
FISERV INC COM 337738108 313 3,090 SH   SOLE   0 0 3,090
FRANKLIN RESOURCES INC COM 354613101 606 21,720 SH   SOLE   0 0 21,720
GENERAL ELECTRIC COMPANY COM 369604301 1,309 14,309 SH   SOLE   0 0 14,309
GENERAL MILLS INC COM 370334104 852 12,574 SH   SOLE   0 0 12,574
GRAHAM HOLDINGS CO. COM 384637104 212 346 SH   SOLE   0 0 346
HEALTH PEAK PROPERTIES INC COM 42250P103 258 7,524 SH   SOLE   0 0 7,524
HERSHEY COMPANY COM 427866108 2,705 12,487 SH   SOLE   0 0 12,487
HOME DEPOT COM 437076102 1,747 5,837 SH   SOLE   0 0 5,837
HONEYWELL INTERNATIONAL INC COM 438516106 5,020 25,801 SH   SOLE   0 0 25,801
HORMEL FOODS CORP COM 440452100 206 4,000 SH   SOLE   0 0 4,000
HP INC COM 40434L105 293 8,074 SH   SOLE   0 0 8,074
ILLINOIS TOOL WORKS INC. COM 452308109 12,456 59,485 SH   SOLE   0 0 59,485
INTEL CORP COM COM 458140100 6,436 129,861 SH   SOLE   0 0 129,861
INTERNATIONAL BUSINESS MACHINE COM 459200101 2,090 16,074 SH   SOLE   0 0 16,074
INTERNATIONAL FLAVORS & FRAGRA COM 459506101 15,971 121,613 SH   SOLE   0 0 121,613
INTERNATIONAL PAPER CO COM 460146103 263 5,709 SH   SOLE   0 0 5,709
INTUIT INC COM 461202103 1,731 3,600 SH   SOLE   0 0 3,600
ISHARES MSCI EAFE INDEX COM 464287465 304 4,130 SH   SOLE   0 0 4,130
ISHARES NASDAQ BIOTECH INDEX COM 464287556 8,653 66,412 SH   SOLE   0 0 66,412
ISHARES RUSSELL 2000 IDX COM 464287655 5,993 29,196 SH   SOLE   0 0 29,196
ISHARES RUSSELL MIDCAP INDEX COM 464287499 8,762 112,275 SH   SOLE   0 0 112,275
JOHNSON & JOHNSON COM 478160104 18,978 107,082 SH   SOLE   0 0 107,082
JPMORGAN CHASE & CO. COM 46625H100 12,880 94,483 SH   SOLE   0 0 94,483
KELLOGG COMPANY COM 487836108 2,466 38,241 SH   SOLE   0 0 38,241
KIMBERLY-CLARK CORP COM 494368103 2,321 18,844 SH   SOLE   0 0 18,844
KIMCO REALTY CORP REIT COM 49446R109 1,484 60,088 SH   SOLE   0 0 60,088
LABORATORY CORP OF AMERICA COM 50540R409 1,829 6,937 SH   SOLE   0 0 6,937
LINDE PLC COM G5494J103 425 1,330 SH   SOLE   0 0 1,330
LOCKHEED MARTIN COM 539830109 1,021 2,312 SH   SOLE   0 0 2,312
LOWES COS COM 548661107 18,539 91,689 SH   SOLE   0 0 91,689
M & T BANK CORP COM 55261F104 2,297 13,550 SH   SOLE   0 0 13,550
MANPOWER INC WISCONSIN COM 56418H100 444 4,724 SH   SOLE   0 0 4,724
MARRIOTT INTERNATIONAL, NEW IN COM 571903202 11,037 62,799 SH   SOLE   0 0 62,799
MARRIOTT VACATIONS WORLDWIDE C COM 57164Y107 280 1,775 SH   SOLE   0 0 1,775
MC DONALD'S CORPORATION COM 580135101 13,975 56,515 SH   SOLE   0 0 56,515
MEDTRONIC INC COM G5960L103 638 5,752 SH   SOLE   0 0 5,752
MERCK & COMPANY INCORPORATED N COM 58933Y105 7,160 87,266 SH   SOLE   0 0 87,266
MICROSOFT CORPORATION COM 594918104 35,902 116,447 SH   SOLE   0 0 116,447
MONDELEZ INTL INC COM 609207105 373 5,947 SH   SOLE   0 0 5,947
MORGAN STANLEY & CO COM 617446448 771 8,820 SH   SOLE   0 0 8,820
MOTOROLA SOLUTIONS, INC COM 620076307 1,212 5,004 SH   SOLE   0 0 5,004
NATIONAL FUEL GAS CO COM 636180101 293 4,268 SH   SOLE   0 0 4,268
NESTLE SA REG ADR COM 641069406 328 2,518 SH   SOLE   0 0 2,518
NEW YORK TIMES CL A COM 650111107 220 4,800 SH   SOLE   0 0 4,800
NEXTERA ENERGY COM 65339F101 8,539 100,801 SH   SOLE   0 0 100,801
NIKE INC CLASS B COM 654106103 228 1,698 SH   SOLE   0 0 1,698
NORFOLK SOUTHERN CORP COM 655844108 437 1,531 SH   SOLE   0 0 1,531
NORTHERN TRUST CORP COM 665859104 1,211 10,400 SH   SOLE   0 0 10,400
NORTHROP GRUMMAN CORP COM 666807102 503 1,125 SH   SOLE   0 0 1,125
NVIDIA CORP COM 67066G104 1,876 6,876 SH   SOLE   0 0 6,876
ORACLE CORP COM 68389X105 697 8,429 SH   SOLE   0 0 8,429
OTIS WORLDWIDE INC COM 68902V107 618 8,027 SH   SOLE   0 0 8,027
PEPSICO INCORPORATED COM 713448108 16,115 96,278 SH   SOLE   0 0 96,278
PFIZER INCORPORATED COM 717081103 1,504 29,043 SH   SOLE   0 0 29,043
PHILIP MORRIS INTERNATIONAL COM 718172109 414 4,410 SH   SOLE   0 0 4,410
PHILLIPS 66 COM 718546104 201 2,325 SH   SOLE   0 0 2,325
PIONEER NAT RES CO COM 723787107 325 1,300 SH   SOLE   0 0 1,300
PNC FINANCIAL SERVICES GROUP COM 693475105 1,004 5,446 SH   SOLE   0 0 5,446
POWERSHARES QQQ TR ETF SERIES COM 73935A104 2,279 6,286 SH   SOLE   0 0 6,286
PROCTER & GAMBLE COMPANY COM 742718109 19,832 129,789 SH   SOLE   0 0 129,789
PUBLIC SERVICE ENTERPRISE GROU COM 744573106 311 4,440 SH   SOLE   0 0 4,440
QUALCOMM INC COM 747525103 242 1,581 SH   SOLE   0 0 1,581
RAYTHEON TECHNOLOGIES CORP COM 75513E101 8,365 84,436 SH   SOLE   0 0 84,436
SAUL CENTERS INC. COM 804395101 355 6,728 SH   SOLE   0 0 6,728
SELECT SECTOR SPDR TR UTILITIE COM 81369Y886 335 4,500 SH   SOLE   0 0 4,500
SMUCKER J.M. CO COM 832696405 678 5,006 SH   SOLE   0 0 5,006
SOUTHERN COMPANY (THE) COM 842587107 3,249 44,810 SH   SOLE   0 0 44,810
SPDR S&P 500 ETF COM 78462F103 509 1,128 SH   SOLE   0 0 1,128
SYSCO CORPORATION COM 871829107 1,423 17,432 SH   SOLE   0 0 17,432
T ROWE PRICE GROUP INC. COM 74144T108 13,913 92,023 SH   SOLE   0 0 92,023
TARGET CORP COM 87612E106 1,008 4,750 SH   SOLE   0 0 4,750
TESLA MOTORS INC COM 88160R101 233 216 SH   SOLE   0 0 216
TEXAS INSTRUMENTS COM 882508104 1,423 7,758 SH   SOLE   0 0 7,758
THE TJX COMPANIES COM 872540109 242 4,000 SH   SOLE   0 0 4,000
THE TRAVELERS COS INC COM 89417E109 733 4,014 SH   SOLE   0 0 4,014
THERMO FISHER SCIENTIFIC COM 883556102 688 1,164 SH   SOLE   0 0 1,164
TRIMBLE NAVIGATION COM 896239100 245 3,400 SH   SOLE   0 0 3,400
TRUIST FINANCIAL CORP COM 89832Q109 432 7,621 SH   SOLE   0 0 7,621
UDR INC COM 902653104 1,129 19,679 SH   SOLE   0 0 19,679
UNILEVER PLC SPONS ADR COM 904767704 228 5,000 SH   SOLE   0 0 5,000
UNION PACIFIC CORP COM 907818108 8,744 32,005 SH   SOLE   0 0 32,005
UNITED HEALTHCARE CORP COM 91324P102 11,749 23,038 SH   SOLE   0 0 23,038
UNITED PARCEL SERVICE INC CL B COM 911312106 224 1,043 SH   SOLE   0 0 1,043
US BANCORP DEL (NEW) COM 902973304 227 4,269 SH   SOLE   0 0 4,269
VANGUARD EMERGING MARKETS ETF COM 922042858 770 16,685 SH   SOLE   0 0 16,685
VANGUARD FTSE DEVELOPED MARKET COM 921943858 1,295 26,953 SH   SOLE   0 0 26,953
VANGUARD INFORMATION TECHNOLOG COM 92204A702 82,640 198,425 SH   SOLE   0 0 198,425
VANGUARD MID CAP ETF COM 922908629 8,272 34,780 SH   SOLE   0 0 34,780
VANGUARD REIT ETF COM 922908553 2,374 21,902 SH   SOLE   0 0 21,902
VANGUARD S&P ETF COM 922908363 1,017 2,450 SH   SOLE   0 0 2,450
VANGUARD SMALL CAP ETF COM 922908751 5,977 28,122 SH   SOLE   0 0 28,122
VANGUARD TOTAL STOCK MARKET COM 922908769 5,548 24,370 SH   SOLE   0 0 24,370
VERIZON COMMUNICATIONS COM 92343V104 3,942 77,376 SH   SOLE   0 0 77,376
VISA INC CLASS A COM 92826C839 12,686 57,203 SH   SOLE   0 0 57,203
VULCAN MATERIALS CO COM 929160109 462 2,517 SH   SOLE   0 0 2,517
WAL-MART STORES INC COM 931142103 1,372 9,213 SH   SOLE   0 0 9,213
WALGREENS BOOTS ALLIANCE, INC. COM 931427108 720 16,085 SH   SOLE   0 0 16,085
WALT DISNEY COMPANY COM 254687106 10,181 74,230 SH   SOLE   0 0 74,230
WASH REAL ESTATE INV TRUST S B COM 939653101 1,489 58,390 SH   SOLE   0 0 58,390
WASTE CONNECTIONS INC COM 94106B101 266 1,900 SH   SOLE   0 0 1,900
WELLS FARGO & CO. NEW COM 949746101 5,084 104,919 SH   SOLE   0 0 104,919
WEYERHAEUSER CO COM 962166104 255 6,729 SH   SOLE   0 0 6,729
WHITE MOUNTAINS INS. COM G9618E107 226 199 SH   SOLE   0 0 199
YUM BRANDS INC COM 988498101 262 2,214 SH   SOLE   0 0 2,214
ZIMMER BIOMET HOLDINGS INC. COM 98956P102 302 2,360 SH   SOLE   0 0 2,360