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Governance Register
US nonprofit · EIN 391650068 · Delafield, WIiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 391650068) - 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 September 2025: assets, liabilities, staff, website, telephone, pay, grants paid (Schedule I).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

Friends of Lapham Peak Unit's network

11 people2 organisationsi11 people and 2 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (11). Violet dotted lines (2) 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

11 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 11 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Anne RiendlAssistant Treasurer2020
6 yrs
John HillmerPresident2020
6 yrs
John KolbeDirector2023
3 yrs
John McCarthyDirector2020
6 yrs
Karl TimmTreasurer2020
6 yrs
Kris MakiDirector2020
6 yrs
Mark FischerCompany secretary2023
3 yrs
Mark HerrDirector2023
3 yrs
Melissa JareckiVice President2022
4 yrs
Rebecca BurtonDirector2024
2 yrs
Rita KeberDirector2020
6 yrs
Under 5 years5 to 6 years6 years or moreShow all 11 →

Pay and hours

year to 30 September 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
John D HillmerPresident30$0
Karl W TimmTreasurer15$0
Melissa JareckiVice President15$0
Nicole DiedrickSecretary10$0
Anne RiendlAssistant Treasurer5$0
Mark HerrDirector10$0
Rita KeberDirector15$0
John KolbeDirector20$0
Kris MakiDirector10$0
John McCarthyDirector20$0
Mark FischerDirector5$0
Rebecca BurtonDirector15$0

No pay was reported for anyone in Part VII on this return.

About

Legal name
Friends of Lapham Peak Unit
EIN
391650068
Address
W329n846 County Road C, Delafield, WI, 53018-2504
State
Wisconsin
Mission
To support and promote the lapham peak unit of the kettle moraine state forest by sponsoring or promoting fundraising events organizing volunteer work days to assist with various projects at the property and offering additional services to park visitors while also helping the wi department of natural resources park personnel (as filed on the Form 990)
Activity (NTEE)
C360 Environment
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Environment
Size band
6 (IRS master file code)
Formed
1989
Principal officer
Karl Timm (as named on the Form 990)
IRS ruling date
1 January 1994
Status
Code 01 (unconditional exemption)
Form 990 filings on record
5, latest 2024
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥6years on the filingsAnne Riendl
≥6years on the filingsJohn Hillmer
≥6years on the filingsJohn McCarthy
≥6years on the filingsKarl Timm

Latest return

year to 30 September 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 September 2025. US dollars, as filed.
Total assets
$3.7m
Total liabilities
$0
Net assets or fund balances
$3.7m
Contributions and grants received
$816k
Program service revenue
$13k
Grants and similar paid out
$43k
Employees
0
Volunteers
40

Filed finances

2 yearsiTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2023$1.6m$220k$1.4m
2023$1.6m$220k$1.4m

As filed on the IRS Form 990. US dollars.

Grants paid

4 listediFrom Schedule I of the Form 990: grants and assistance to organisations in the United States, largest first (up to 25). Schedule I is filed only by organisations that gave more than $5,000 to any one recipient.
RecipientPurposeAmount
Wisconsin DNRSupport salary of a naturalist for the nature center recognized in December 2024.$8k
Wisconsin DNRSupport salary of a naturalist for the nature center recognized in August 2025.$8k
Wisconsin DNRGift of SMI Gizzly Snowtower for the making of snow.$0
Wisconsin DNRGift of an ATV to be used to maintain the park.$0