- Revenue 2025
- $255,293
- Expenses 2025
- $58,300
Program services were 79.6% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.
As filed
- Subsection
- 03
- Classification
- 1000
- Street
- PO BOX 54
These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).
Mission and programs · 2025
Mission
Pentwater Historical Society seeks to connect people to the history of Pentwater by collecting, preserving, and sharing information and artifacts.
-
Operate Museum--Society served 1537 museum visitors in 2025. Made grant to capital campaign to support expansion of museum building.
Expenses $30,465 · Grants $20,083 · Revenue $546
-
Acquire Artifacts and Develop Exhibits--Society completed Journeys to Pentwater exhibit. Society digitized microfilm of 19th century local newspaper, and continued the digital archiving of 340 more artifacts.
Expenses $14,227
-
Publish Newsletter about Pentwater History--Society wrote and distributed 3 newsletters to 354 society members.
Expenses $1,728
As filed on the 2025 return.
Officers and directors · 2025
As listed in Part VII of the 2025 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.
-
Amy VanderZwart
Trustee
- Total calculated
- $0
- Hours/week
- 4
-
Karen Way
Trustee
- Total calculated
- $0
- Hours/week
- 2
-
Elizabeth Russell
Trustee
- Total calculated
- $0
- Hours/week
- 20
-
Norman Shotwell
Trustee
- Total calculated
- $0
- Hours/week
- 10
-
James Lambrix
Trustee
- Total calculated
- $0
- Hours/week
- 2
-
Daniel Hoekstra
Trustee
- Total calculated
- $0
- Hours/week
- 8
-
Mark Roisen
Trustee
- Total calculated
- $0
- Hours/week
- 2
-
Daniel Girvan
Secretary Trustee
- Total calculated
- $0
- Hours/week
- 2
-
Michael Waidelich
Treasurer Trustee
- Total calculated
- $0
- Hours/week
- 10
-
Barton Zachrich
Vice President Trustee
- Total calculated
- $0
- Hours/week
- 0
-
Robert French
Vice President Trustee
- Total calculated
- $0
- Hours/week
- 5
-
Richard Warner
President Trustee
- Total calculated
- $0
- Hours/week
- 8
Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.
Filings
-
2025
- Revenue
- $255,293
- Expenses
- $58,300
- Contributions
- $233,521
- Grants paid
- $20,083
-
2024
- Revenue
- $61,643
- Expenses
- $42,235
- Contributions
- $54,718
- Grants paid
- $0
The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.
Form 990-N e-Postcard, tax year 2023
- Tax period
- 1 January 2023 to 31 December 2023
- Principal officer
-
Richard Warner
- Mailing address
- PO Box 54Pentwater MI 49449
- Website
- pentwaterhistoricalsociety.org
As filed, from the IRS e-Postcard file of 26 October 2026. The IRS publishes only each organization's most recent postcard, so earlier years are not shown. A 990-N carries no financial detail. The postcard also gives the principal officer's address, which is not shown here.
Grants made
-
$20,083
2025 Purpose of grant was to support our building expansion fund being held and managed at Oceana Community Foundation.
Grants received
-
2025 MUSEUM BUILDING EXPANSION PROJECT
Other IRS files
Auto-Revocation List
Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.
Publication 78
Listed as of 13 October 2026, under deductibility PC.
These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.
What this page reflects
The registration facts above come from the IRS Business Master File published 13 October 2026 and read 29 October 2026, for every organization at once. Returns through tax year 2025, the newest we have parsed for this organization.