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 3,234 20,729 SH   SOLE   0 0 20,729
ABBOTT LABORATORIES COM 002824100 8,186 89,529 SH   SOLE   0 0 89,529
ABBVIE INC COM 00287Y109 1,735 17,677 SH   SOLE   0 0 17,677
ADOBE SYSTEMS INCORPORATED COM 00724F101 6,318 14,513 SH   SOLE   0 0 14,513
AIR PRODUCTS & CHEMICALS COM 009158106 330 1,368 SH   SOLE   0 0 1,368
ALLSTATE CORPORATION COM 020002101 629 6,483 SH   SOLE   0 0 6,483
ALPHABET INC NON-VOTING CL C COM 02079K107 8,892 6,290 SH   SOLE   0 0 6,290
ALPHABET INC VOTING CL A COM 02079K305 692 488 SH   SOLE   0 0 488
AMAZON.COM INC COM 023135106 11,968 4,338 SH   SOLE   0 0 4,338
AMERICAN ELECTRIC POWER COM 025537101 208 2,606 SH   SOLE   0 0 2,606
AMERICAN EXPRESS INC COM 025816109 2,569 26,980 SH   SOLE   0 0 26,980
AMGEN INC COM 031162100 1,167 4,946 SH   SOLE   0 0 4,946
APPLE INC COM 037833100 15,745 43,162 SH   SOLE   0 0 43,162
ARCHER DANIELS MIDLAND CO COM 039483102 993 24,876 SH   SOLE   0 0 24,876
AT&T CORP NEW COM 00206R102 1,839 60,842 SH   SOLE   0 0 60,842
ATMOS ENERGY CORP COM 049560105 1,886 18,939 SH   SOLE   0 0 18,939
BANK OF AMERICA COM 060505104 993 41,792 SH   SOLE   0 0 41,792
BANK OF NEW YORK MELLON CORP COM 064058100 741 19,175 SH   SOLE   0 0 19,175
BECTON DICKINSON COM 075887109 10,095 42,192 SH   SOLE   0 0 42,192
BERKSHIRE HATHAWAY INC DEL CLA COM 084670108 2,940 11 SH   SOLE   0 0 11
BERKSHIRE HATHAWAY INC DEL CLA COM 084670702 894 5,010 SH   SOLE   0 0 5,010
BOEING COM 097023105 1,768 9,648 SH   SOLE   0 0 9,648
BRISTOL-MYERS SQUIBB COMPANY COM 110122108 902 15,339 SH   SOLE   0 0 15,339
C S X CORPORATION COM 126408103 488 7,000 SH   SOLE   0 0 7,000
CABLE ONE INC COM 12685J105 669 377 SH   SOLE   0 0 377
CARRIER GLOBAL COM 14448C104 422 18,992 SH   SOLE   0 0 18,992
CATERPILLAR INCORPORATED COM 149123101 4,576 36,176 SH   SOLE   0 0 36,176
CHEMOURS CO COM 163851108 10,789 702,885 SH   SOLE   0 0 702,885
CHEVRON CORP COM 166764100 4,952 55,495 SH   SOLE   0 0 55,495
CHURCH & DWIGHT CO INC COM 171340102 11,336 146,654 SH   SOLE   0 0 146,654
CISCO SYSTEMS INC COM 17275R102 6,681 143,252 SH   SOLE   0 0 143,252
COCA-COLA COMPANY COM 191216100 1,805 40,400 SH   SOLE   0 0 40,400
COLGATE-PALMOLIVE COMPANY COM 194162103 447 6,102 SH   SOLE   0 0 6,102
COMCAST CORP NEW CL A COM 20030N101 243 6,222 SH   SOLE   0 0 6,222
CONOCOPHILLIPS COM 20825C104 233 5,534 SH   SOLE   0 0 5,534
CORNING INC. COM 219350105 629 24,300 SH   SOLE   0 0 24,300
CORTEVA INC COM 22052L104 28,529 1,064,903 SH   SOLE   0 0 1,064,903
CVS CAREMARK CORPORATION COM 126650100 517 7,950 SH   SOLE   0 0 7,950
DANAHER CORP COM 235851102 739 4,180 SH   SOLE   0 0 4,180
DENTSPLY SIRONA INC COM 24906P109 1,609 36,519 SH   SOLE   0 0 36,519
DISCOVER FINANCIAL SERVICES COM 254709108 300 5,987 SH   SOLE   0 0 5,987
DOMINION RESOURCES INC OF VA COM 25746U109 4,388 54,047 SH   SOLE   0 0 54,047
DOVER CORPORATION COM 260003108 221 2,285 SH   SOLE   0 0 2,285
DOW CHEMICAL COMPANY (THE) COM 260543103 44,886 1,101,223 SH   SOLE   0 0 1,101,223
DTE ENERGY COM 233331107 324 3,011 SH   SOLE   0 0 3,011
DU PONT (E.I.) DE NEMOURS & CO COM 263534109 58,585 1,102,680 SH   SOLE   0 0 1,102,680
DUKE ENERGY CORP COM 26441C204 1,272 15,921 SH   SOLE   0 0 15,921
ELI LILLY & CO COM 532457108 792 4,822 SH   SOLE   0 0 4,822
EMERSON ELECTRIC CO. COM 291011104 881 14,206 SH   SOLE   0 0 14,206
ENBRIDGE INC. COM 29250N105 739 24,280 SH   SOLE   0 0 24,280
ESSENTIAL UTILITIES INC COM 29670G102 6,805 161,105 SH   SOLE   0 0 161,105
EXXON MOBIL CORPORATION COM 30231G102 6,474 144,768 SH   SOLE   0 0 144,768
FEDERAL REALTY INV TR S B I COM 313747206 910 10,679 SH   SOLE   0 0 10,679
FEDEX CORP COM 31428X106 3,982 28,399 SH   SOLE   0 0 28,399
FISERV INC COM 337738108 302 3,090 SH   SOLE   0 0 3,090
FORTIVE CORP COM 34959J108 266 3,938 SH   SOLE   0 0 3,938
FRANKLIN RESOURCES INC COM 354613101 474 22,585 SH   SOLE   0 0 22,585
GENERAL ELECTRIC COMPANY COM 369604103 1,189 174,031 SH   SOLE   0 0 174,031
GENERAL MILLS INC COM 370334104 741 12,014 SH   SOLE   0 0 12,014
HEALTH PEAK PROPERTIES INC COM 42250P103 207 7,524 SH   SOLE   0 0 7,524
HERSHEY COMPANY COM 427866108 1,525 11,762 SH   SOLE   0 0 11,762
HOME DEPOT COM 437076102 1,195 4,770 SH   SOLE   0 0 4,770
HONEYWELL INTERNATIONAL INC COM 438516106 2,836 19,613 SH   SOLE   0 0 19,613
ILLINOIS TOOL WORKS INC. COM 452308109 10,894 62,303 SH   SOLE   0 0 62,303
INTEL CORP COM COM 458140100 7,827 130,828 SH   SOLE   0 0 130,828
INTERNATIONAL BUSINESS MACHINE COM 459200101 2,343 19,399 SH   SOLE   0 0 19,399
INTERNATIONAL PAPER CO COM 460146103 201 5,709 SH   SOLE   0 0 5,709
INTUIT INC COM 461202103 1,066 3,600 SH   SOLE   0 0 3,600
ISHARES MSCI EAFE INDEX COM 464287465 330 5,424 SH   SOLE   0 0 5,424
ISHARES NASDAQ BIOTECH INDEX COM 464287556 7,279 53,251 SH   SOLE   0 0 53,251
ISHARES RUSSELL 2000 IDX COM 464287655 4,369 30,514 SH   SOLE   0 0 30,514
ISHARES RUSSELL MIDCAP INDEX COM 464287499 6,331 118,119 SH   SOLE   0 0 118,119
JOHNSON & JOHNSON COM 478160104 14,787 105,147 SH   SOLE   0 0 105,147
JPMORGAN CHASE & CO. COM 46625H100 8,661 92,077 SH   SOLE   0 0 92,077
KELLOGG COMPANY COM 487836108 2,678 40,536 SH   SOLE   0 0 40,536
KIMBERLY-CLARK CORP COM 494368103 2,910 20,587 SH   SOLE   0 0 20,587
LABORATORY CORP OF AMERICA COM 50540R409 1,074 6,467 SH   SOLE   0 0 6,467
LINDE PLC COM G5494J103 309 1,457 SH   SOLE   0 0 1,457
LOCKHEED MARTIN COM 539830109 858 2,352 SH   SOLE   0 0 2,352
LOWES COS COM 548661107 13,658 101,081 SH   SOLE   0 0 101,081
M & T BANK CORP COM 55261F104 1,409 13,550 SH   SOLE   0 0 13,550
MANPOWER INC WISCONSIN COM 56418H100 325 4,724 SH   SOLE   0 0 4,724
MARRIOTT INTERNATIONAL, NEW IN COM 571903202 4,842 56,480 SH   SOLE   0 0 56,480
MC DONALD'S CORPORATION COM 580135101 10,215 55,374 SH   SOLE   0 0 55,374
MEDTRONIC INC COM G5960L103 284 3,098 SH   SOLE   0 0 3,098
MERCK & COMPANY INCORPORATED N COM 58933Y105 5,901 76,305 SH   SOLE   0 0 76,305
MICROSOFT CORPORATION COM 594918104 25,173 123,695 SH   SOLE   0 0 123,695
MONDELEZ INTL INC COM 609207105 245 4,797 SH   SOLE   0 0 4,797
MORGAN STANLEY & CO COM 617446448 584 12,088 SH   SOLE   0 0 12,088
MOTOROLA SOLUTIONS, INC COM 620076307 712 5,084 SH   SOLE   0 0 5,084
NESTLE SA REG ADR COM 641069406 254 2,303 SH   SOLE   0 0 2,303
NEW YORK TIMES CL A COM 650111107 202 4,800 SH   SOLE   0 0 4,800
NEXTERA ENERGY COM 65339F101 5,089 21,190 SH   SOLE   0 0 21,190
NIKE INC CLASS B COM 654106103 203 2,073 SH   SOLE   0 0 2,073
NORFOLK SOUTHERN CORP COM 655844108 269 1,531 SH   SOLE   0 0 1,531
NORTHERN TRUST CORP COM 665859104 825 10,400 SH   SOLE   0 0 10,400
ORACLE CORP COM 68389X105 439 7,949 SH   SOLE   0 0 7,949
OTIS WORLDWIDE INC COM 68902V107 658 11,580 SH   SOLE   0 0 11,580
PEPSICO INCORPORATED COM 713448108 11,927 90,180 SH   SOLE   0 0 90,180
PFIZER INCORPORATED COM 717081103 1,208 36,945 SH   SOLE   0 0 36,945
PHILIP MORRIS INTERNATIONAL COM 718172109 348 4,968 SH   SOLE   0 0 4,968
PHILLIPS 66 COM 718546104 327 4,542 SH   SOLE   0 0 4,542
PNC FINANCIAL SERVICES GROUP COM 693475105 385 3,656 SH   SOLE   0 0 3,656
POWERSHARES QQQ TR ETF SERIES COM 73935A104 1,538 6,211 SH   SOLE   0 0 6,211
PROCTER & GAMBLE COMPANY COM 742718109 15,235 127,417 SH   SOLE   0 0 127,417
PUBLIC SERVICE ENTERPRISE GROU COM 744573106 221 4,490 SH   SOLE   0 0 4,490
RAYTHEON TECHNOLOGIES CORP COM 75513E101 4,977 80,766 SH   SOLE   0 0 80,766
SAUL CENTERS INC. COM 804395101 225 6,978 SH   SOLE   0 0 6,978
SELECT SECTOR SPDR TR UTILITIE COM 81369Y886 254 4,500 SH   SOLE   0 0 4,500
SMUCKER J.M. CO COM 832696405 530 5,006 SH   SOLE   0 0 5,006
SOUTHERN COMPANY (THE) COM 842587107 2,604 50,231 SH   SOLE   0 0 50,231
SPDR S&P 500 ETF COM 78462F103 348 1,128 SH   SOLE   0 0 1,128
SYSCO CORPORATION COM 871829107 999 18,282 SH   SOLE   0 0 18,282
T ROWE PRICE GROUP INC. COM 74144T108 11,937 96,656 SH   SOLE   0 0 96,656
TARGET CORP COM 87612E106 664 5,534 SH   SOLE   0 0 5,534
TEXAS INSTRUMENTS COM 882508104 831 6,548 SH   SOLE   0 0 6,548
THE TJX COMPANIES COM 872540109 202 4,000 SH   SOLE   0 0 4,000
THE TRAVELERS COS INC COM 89417E109 453 3,969 SH   SOLE   0 0 3,969
THERMO FISHER SCIENTIFIC COM 883556102 533 1,470 SH   SOLE   0 0 1,470
UDR INC COM 902653104 715 19,117 SH   SOLE   0 0 19,117
UNILEVER COM 904784709 256 4,800 SH   SOLE   0 0 4,800
UNION PACIFIC CORP COM 907818108 5,766 34,107 SH   SOLE   0 0 34,107
UNITED HEALTHCARE CORP COM 91324P102 6,908 23,421 SH   SOLE   0 0 23,421
VANGUARD EMERGING MARKETS ETF COM 922042858 580 14,634 SH   SOLE   0 0 14,634
VANGUARD FTSE DEVELOPED MARKET COM 921943858 962 24,811 SH   SOLE   0 0 24,811
VANGUARD INFORMATION TECHNOLOG COM 92204A702 55,436 198,900 SH   SOLE   0 0 198,900
VANGUARD MID CAP ETF COM 922908629 5,740 35,019 SH   SOLE   0 0 35,019
VANGUARD REIT ETF COM 922908553 558 7,110 SH   SOLE   0 0 7,110
VANGUARD S&P ETF COM 922908363 950 3,350 SH   SOLE   0 0 3,350
VANGUARD SMALL CAP ETF COM 922908751 4,052 27,808 SH   SOLE   0 0 27,808
VANGUARD TOTAL STOCK MARKET COM 922908769 2,661 17,000 SH   SOLE   0 0 17,000
VERIZON COMMUNICATIONS COM 92343V104 3,810 69,112 SH   SOLE   0 0 69,112
VISA INC CLASS A COM 92826C839 12,152 62,909 SH   SOLE   0 0 62,909
VULCAN MATERIALS CO COM 929160109 278 2,400 SH   SOLE   0 0 2,400
WAL-MART STORES INC COM 931142103 624 5,207 SH   SOLE   0 0 5,207
WALGREENS BOOTS ALLIANCE, INC. COM 931427108 2,314 54,584 SH   SOLE   0 0 54,584
WALT DISNEY COMPANY COM 254687106 6,888 61,767 SH   SOLE   0 0 61,767
WASH REAL ESTATE INV TRUST S B COM 939653101 1,831 82,463 SH   SOLE   0 0 82,463
WASTE CONNECTIONS INC COM 94106B101 280 3,000 SH   SOLE   0 0 3,000
WEINGARTEN REALTY INVS S B I COM 948741103 1,417 74,881 SH   SOLE   0 0 74,881
WELLS FARGO & CO. NEW COM 949746101 2,742 107,101 SH   SOLE   0 0 107,101
WEYERHAEUSER CO COM 962166104 237 10,539 SH   SOLE   0 0 10,539
ZIMMER BIOMET HOLDINGS INC. COM 98956P102 389 3,260 SH   SOLE   0 0 3,260