Rock County Historical Society
Donations deductibleRock County Historical Society's network
13 peoplei13 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (13). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.The board
13 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.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 13 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.| Name | Role as filed | Since | On the board |
|---|---|---|---|
| Catherine Barton | Company secretary | 2024 | 2 yrs |
| Christine Ahern | Director | 2024 | 2 yrs |
| Don Handrow | President | 2024 | 2 yrs |
| Kathy Boguszewski | Director | 2018 | 8 yrs |
| Lindsay Sayles | Director | 2023 | 3 yrs |
| Lissa Myhre | Director | 2023 | 3 yrs |
| Lonnie Brigham | Director | 2024 | 2 yrs |
| Matt Pamperin | Director | 2024 | 2 yrs |
| Michael Easton | Director | 2023 | 3 yrs |
| Rachel Andres | Vice Preside | 2023 | 3 yrs |
| Terri Holznecht | Director | 2019 | 7 yrs |
| Tom Boguszewski | Treasurer | 2024 | 2 yrs |
| William Vogt (also filed as Bill Vogt) | Director | 2019 | 7 yrs |
Officers and senior leadership
2 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.| Name | Title as filed | On the filings |
|---|---|---|
| Mike Reuter | Previous Executive Director | 2018 |
| Timothy Maahs | Executive Director | since 2018 |
Pay and hours
year to 31 December 2024iFrom 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.| Name | Title as filed | Hours a week | Pay from the organisation | Related organisations | Other |
|---|---|---|---|---|---|
| Timothy Maahs | Executive Di | 40 | $100k | ||
| Terri Holznecht | Director | 1 | $14k | ||
| Don Handrow | President | 5 | $0 | ||
| Rachel Andres | Vice Preside | 5 | $0 | ||
| Tom Boguszewski | Treasurer | 5 | $0 | ||
| Catherine Barton | Secretary | 5 | $0 | ||
| Christine Ahern | Director | 1 | $0 | ||
| Kathy Boguszewski | Director | 1 | $0 | ||
| Lonnie Brigham | Director | 1 | $0 | ||
| Michael Easton | Director | 1 | $0 | ||
| Lissa Myhre | Director | 1 | $0 | ||
| Matt Pamperin | Director | 1 | $0 | ||
| Lindsay Sayles | Director | 1 | $0 | ||
| Bill Vogt | Director | 1 | $0 |
About
- Legal name
- Rock County Historical Society
- EIN
- 390825331
- Address
- 426 N Jackson St, Janesville, WI, 53548-2936
- State
- Wisconsin
- Mission
- The rock county historical society enriches and engages the communities in rock county, wisconsin through preservation and dissemination of the unique history and heritage of our area. (as filed on the Form 990)
- Activity (NTEE)
- A82Z 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
- 6 (IRS master file code)
- Formed
- 1948
- Principal officer
- Don Handrow (as named on the Form 990)
- IRS ruling date
- 1 January 1950
- Status
- Code 01 (unconditional exemption)
- Form 990 filings on record
- 6, latest 2024
- IRS Publication 78
- PC (contributions deductible)
Most connected
Longest observed on the filings
≥8years on the filingsKathy Boguszewski
≥7years on the filingsTerri Holznecht
≥7years on the filingsWilliam Vogt
≥3years on the filingsLindsay Sayles
Latest return
year to 31 December 2024iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2024. US dollars, as filed.- Total assets
- $2.4m
- Total liabilities
- $37k
- Net assets or fund balances
- $2.4m
- Contributions and grants received
- $272k
- Program service revenue
- $235k
- Employees
- 10
- Volunteers
- 133
Filed finances
2 yearsiTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.| Tax year | Total revenue | Total expenses | Surplus or deficit |
|---|---|---|---|
| 2024 | $563k | $537k | $26k |
| 2023 | $841k | $718k | $123k |
As filed on the IRS Form 990. US dollars.