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Governance Register
US nonprofit · EIN 363308567 · Lake Worth, FLiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 363308567) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe tenure.Latest return IRS Form 990 series e-file data - 990 for the year to 30 June 2025: assets, liabilities, staff, website, telephone, pay.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue (us-approach-v4-clean). Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

National Museum of Polo and Hall of Fame's network

16 people4 organisationsi16 people and 4 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (16). Violet dotted lines (5) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

16 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Tenure and departures are observed across annual filings. Observed tenure is a lower bound - a member may have joined before the first year on record. The organisation reported 16 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Martin S Cregg ChairChairman/Director2020
6 yrs
Adam SnowDirector2020
6 yrs
Anthony CoppolaVP/ Director2020
6 yrs
Clifford M SiftonDirector2020
6 yrs
Daniel WalkerDirector2020
6 yrs
Dr Madison RichardsonDirector2020
6 yrs
George DupontVP/Chief Operating Officer2020
6 yrs
Glen A HoldenDirector2020
6 yrs
Joseph KozlokTreasurer/Director2020
6 yrs
Melissa Potamkin GanziPresident/Director2020
6 yrs
Mrs Robert OrthweinDirector2020
6 yrs
Paul E JornayvazDirector2020
6 yrs
Peter J RizzoDirector2020
6 yrs
Robert P JornayvazDirector2020
6 yrs
Russell G CoreyDirector2020
6 yrs
Stewart ArmstrongDirector2020
6 yrs
Under 5 years5 to 6 years6 years or moreShow all 16 →

Officers and senior leadership

1 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Wade ByrdCompany secretarysince 2020

Pay and hours

year to 30 June 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
George DuPontVP/Chief Operating Officer40$79k
Martin S CreggChairman/Director1$0
Melissa Potamkin GanziPresident/Director1$0
Joseph KozlokTreasurer/Director1$0
Daniel WalkerDirector1$0
Anthony CoppolaVP/ Director1$0
Peter J RizzoDirector1$0
Stewart ArmstrongDirector1$0
Russell G CoreyDirector1$0
Glen A HoldenDirector1$0
Paul E JornayvazDirector1$0
Robert P JornayvazDirector1$0
Mrs Robert OrthweinDirector1$0
Dr Madison RichardsonDirector1$0
Clifford M SiftonDirector1$0
Adam SnowDirector1$0

About

Legal name
National Museum of Polo and Hall of Fame
EIN
363308567
Address
9011 Lake Worth Rd, Lake Worth, FL, 33467-3617
State
Florida
Mission
To operate a National Museum of Polo & Hall of Fame for the sport of polo. Includind displays of Polo Memorabilia, art & Artifacts. To provide a center of education & knowledge for the sport of polo. (as filed on the Form 990)
Activity (NTEE)
A500 Arts, culture and humanities
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Arts, Culture & Humanities
Size band
8 (IRS master file code)
Formed
1984
Principal officer
George J Dupont (as named on the Form 990)
IRS ruling date
1 August 1984
Status
Code 01 (unconditional exemption)
Form 990 filings on record
6, latest 2025
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥6years on the filingsMartin S Cregg
≥6years on the filingsAdam Snow
≥6years on the filingsAnthony Coppola
≥6years on the filingsClifford M Sifton

Latest return

year to 30 June 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 June 2025. US dollars, as filed.
Total assets
$11m
Total liabilities
$25k
Net assets or fund balances
$10.9m
Contributions and grants received
$347k
Program service revenue
$0
Employees
5
Volunteers
2

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2023$687k$680k$6k

As filed on the IRS Form 990. US dollars.