Ambiguous identityThis name matches 110 other individuals we could not verify as the same person. Each is kept as a separate record below — treat them as distinct people unless an explicit match is confirmed.
Organizations
5
Roles reported
5
Others who share this name
110
Who this is
Profile
The filed facts are verified from the IRS filings. The biography is compiled from public web sources and grounded to that filed record.
Facts extracted directly from each organization's Form 990, Part VII.
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Affiliations
Organizations
Linked as the same person by IRS Schedule R, a shared officer mailing address, or shared fellow board members.
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Springside at Seneca Hill INCDirector · $1.7M revenue · Oswego, NYThe mission of Oswego Health, Inc., the sole member of Springside at Seneca Hill, Inc., is to provide accessible quality care and improve the health…Filed FY2024, FY2023, FY2022, FY2021, FY2020 · Source: Form 990, Part VII
Oswego Hospital INCDirector · $184.8M revenue · Oswego, NYTHE MISSION OF OSWEGO HEALTH IS TO PROVIDE ACCESSIBLE, QUALITY CARE AND IMPROVE THE HEALTH OF RESIDENTS IN OUR COMMUNITY.YOUR HEALTH AND WELLNESS…Filed FY2024, FY2023, FY2022, FY2021, FY2020 · Source: Form 990, Part VII
Seneca Hill Manor INC Oswego HospitalDirector · $15.0M revenue · Oswego, NYSENECA HILL MANOR INC. (THE MANOR), IS A 120-BED RESIDENTIAL HEALTH CARE FACILITY LOCATED IN VOLNEY, NEW YORK. THE MANOR PROVIDES A WIDE RANGE OF…Filed FY2024, FY2023, FY2022, FY2021, FY2020 · Source: Form 990, Part VII
Oswego Health INCDirector · $7.3M revenue · Oswego, NYThe mission of Oswego Health, Inc. is to provide accessible quality care and improve the health of residents in our community.Filed FY2024, FY2023, FY2022, FY2021, FY2020 · Source: Form 990, Part VII
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Oh Properties INCDirector · $1.1M revenue · Oswego, NYThe mission of Oswego Health, Inc., the sole member of OH Properties, Inc., is to provide accessible quality care and improve the health of residents…Filed FY2024, FY2023, FY2022, FY2021, FY2020 · Source: Form 990, Part VII
Disambiguation
Other people named William Clark
Different individuals who share this name, separated by IRS Schedule R, mailing address, and shared-board evidence. The 990 carries no person identifier, so some may still be the same person. Showing 60 of 110 (most roles first).
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William Clark4 organizations · Perry, IAPerry Economic Development INC
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William Clark3 organizations · Portsmouth, NHThe Center for Responsible Seafood INC
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William Clark2 organizations · Salina, KSSaint Francis Ministries Group Return
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William Clark2 organizations · Durham, NCLearning Assistance INC
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William Clark2 organizations · Tulsa, OKYouth Services of Tulsa INC
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William Clark1 organization · Adrian, MIChristian Mission INC
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William Clark1 organization · Eugene, ORThe Reveille Foundation
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William Clark1 organization · Little Rock, ARArkansas Champions Trust
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William Clark1 organization · New Paltz, NYStudent Association of SUNY New Paltz INC
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William Clark1 organization · Montgomery, ALAlabama Funeral Directors Association INC
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William Clark1 organization · New York, NYNational Association of Broadcasters
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William Clark1 organization · Waycross, GAOkefenokee Swamp Park INC
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William Clark1 organization · Bartonville, ILRedbrand Credit Union
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William Clark1 organization · Rochester, NYTrillium Health INC
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William Clark1 organization · Santa Ana, CAThe A21 Campaign INC
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William Clark1 organization · Plymouth, NHFirst Star Tonight INC
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William Clark1 organization · Port Jervis, NYMinisink Valley Historical Society
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William Clark1 organization · Topsfield, MAEssex Agricultural Society
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William Clark1 organization · N Hollywood, CANoh8 Campaign
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William Clark1 organization · Canandaigua, NYBristol Volunteer Fire Department INC
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William Clark1 organization · New York, NYBreakthrough New York INC
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William Clark1 organization · Des Plaines, ILOperations Technology Development Nfp
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William Clark1 organization · Washington, DCNational Association of Energy Service Companies
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William Clark1 organization · Daytona Beach, FLVolusia-Flagler County Coalition for the Homeless INC
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William Clark1 organization · Stuart, VAPatrick County Agricultural Fair Incorporated
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William Clark1 organization · Irvine, CAJewish Community Center of Orange County
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William Clark1 organization · Vandalia, OHVandalia-Butler Chamber of Commerce
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William Clark1 organization · Fairfax, VAThe Valentine Charitable Foundation INC
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William Clark1 organization · Rensselaer, NYLumber Dealers Asssociation Ofconnecticut INC
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William Clark1 organization · Norridgewock, MEMaine Antique Tractor Club INC
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William Clark1 organization · Philadelphia, PAGirard College Alumni Association
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William Clark1 organization · Washington, DCEmployee Benefit Research Institute
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William Clark1 organization · Clarksburg, WVVeterans of Foreign Wars Meuse 573
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William Clark1 organization · Marion, MAIsland Foundation INC
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William Clark1 organization · Wheeling, ILCremation Association of North America
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William Clark1 organization · Erie, PADr Gertrude a Barber Center INC
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William Clark1 organization · Latonia, KYSons of American Legion Squard 203
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William Clark1 organization · Atlanta, GAVirginia-Highland Security Patrol INC
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William Clark1 organization · Tulsa, OKEducational Foundation of America
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William Clark1 organization · Columbia, MDBeacon Institute INC
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William Clark1 organization · Baldwin, MDHarford Friends School INC
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William Clark1 organization · Richmond, KYBlast Christian Academy INC
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William Clark1 organization · Houston, TXStepping Stones Charter Elementary INC
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William Clark1 organization · Erie, PASecond Harvest Food Bank of Northwest Pennsylvania
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William Clark1 organization · El Paso, TXEl Paso Matters INC
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William Clark1 organization · Warren, PAWarren County Chamber of Business and Industry INC
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William Clark1 organization · New York, NYTrue North Rochester Preparatorycharter School
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William Clark1 organization · Little Rock, ARCentral Arkansas Radiation Therapy Institute INC
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William Clark1 organization · Lansing, MINational Association of Theatre Owners of Michigan INC
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William Clark1 organization · Buffalo, NYSet Free INC
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William Clark1 organization · Voorhees, NJFox Hollow Swim Club
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William Clark1 organization · Prnc Frederck, MDPrince Frederick Volunteer Rescue Squad INC
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William Clark1 organization · Towanda, PAThe Childrens House
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William Clark1 organization · Mclean, VAAir Line Pilots Association
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William Clark1 organization · Shelter Island, NYShelter Island Historical Society
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William Clark1 organization · N Wilkesboro, NCThe Health Foundation INC
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William Clark1 organization · Newington, CTConnecticosh Health Technical Committee INC Connecticut Council
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William Clark1 organization · New Bedford, MANew Bedford Port Society
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William Clark1 organization · Hartford, CTConnecticut Fair Housing Center INC
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William Clark1 organization · Stroudsburg, PABlue Ridge Hook and Ladder Fire Company No 1 INC
Network
Serves alongside
Other officers, directors & key employees at this person's organizations, by latest reported compensation.
Public data from IRS Form 990 e-file & the Business Master File. Individuals appear here because they were named as an officer, director, or key employee on a nonprofit's Form 990; people are grouped by name plus corroborating evidence (Schedule R, shared address, shared board members). · philanthropy.org
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