Nonprofit · EIN 48-0646424
RILEY COUNTY HISTORICAL SOCIETY
Tax-exempt · MANHATTAN, KS 66502
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $604,478 | $200,634 | $403,844 | $6,695,020 | $1,306 | $6,693,714 |
| December 31, 2024 | 990 | $349,474 | $192,746 | $156,728 | $6,086,291 | $0 | $6,086,291 |
| December 31, 2023 | 990 | $195,640 | $115,720 | $79,920 | $5,616,429 | $464 | $5,615,965 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $22,181
- of which government grants
- $7,000
- Program service revenue
- $12,478
- Investment income
- $567,585
- Net gain from sales of assets
- $418,664
- Net income from fundraising events
- -$880
- Net income from sales of inventory
- $3,114
- Other revenue
- $2,234
Expenses
- Grants and similar amounts paid
- $32,500
- Other salaries and wages
- $37,880
- Salaries, compensation and benefits (total)
- $41,620
- Professional fundraising fees
- $30
- Accounting fees
- $2,748
- Occupancy
- $53,672
- Depreciation
- $4,683
- Program services (functional)
- $195,921
- Management and general (functional)
- $4,683
- Fundraising (functional)
- $30
Balance sheet and other
- Total assets, start of year
- $6,086,291
- Total assets, end of year
- $6,695,020
- Total liabilities, end of year
- $1,306
- Net assets, end of year
- $6,693,714
- Land, buildings and equipment
- $194,093
- Publicly traded securities
- $6,101,493
- Net assets without donor restrictions
- $3,118,906
- Net assets with donor restrictions
- $3,574,808
- Gross receipts
- $1,312,971
- Employees
- 6
- Volunteers
- 50
- Year formed
- 1914
- State of legal domicile
- KS
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| CHARLENE BROWNSON | DIRECTOR Trustee or director | – | $0 |
| ROBIN EDMUNDS | DIRECTOR Trustee or director | – | $0 |
| GLORIA FREELAND | DIRECTOR Trustee or director | – | $0 |
| RAFAEL GARCIA | DIRECTOR Trustee or director | – | $0 |
| KATHARINE HENSLER | DIRECTOR Trustee or director | – | $0 |
| CAROL HOCKERSMITH | VICE PRESIDE Trustee or director, Officer | – | $0 |
| JOE KNOPP | DIRECTOR Trustee or director | – | $0 |
| MARY KOHN | DIRECTOR Trustee or director | – | $0 |
| COLENE LIND | SECRETARY Trustee or director, Officer | – | $0 |
| JANET LOWELL | TREASURER Trustee or director, Officer | – | $0 |
| JANA MCKINLEY | DIRECTOR Trustee or director | – | $0 |
| MARY MERTZ | PRESIDENT Trustee or director, Officer | – | $0 |
| DORI MILLDYKE | PAST PRESIDE Trustee or director, Officer | – | $0 |
| LARISSA OSHIMA | DIRECTOR Trustee or director | – | $0 |
| JEN PURSLEY | DIRECTOR Trustee or director | – | $0 |
2 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| LAUREN RITTERBUSH | DIRECTOR Trustee or director | – | $0 |
| STEVE SMETHERS | DIRECTOR Trustee or director | – | $0 |
990 for the year ended December 31, 2024: 17 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| DAVE BAKER | DIRECTOR Trustee or director | – | $0 |
| CHARLENE BROWNSON | DIRECTOR Trustee or director | – | $0 |
| JANET DUNCAN | DIRECTOR Trustee or director | – | $0 |
| GLORIA FREELAND | DIRECTOR Trustee or director | – | $0 |
| RAFAEL GARCIA | DIRECTOR Trustee or director | – | $0 |
| CAROL HOCKERSMITH | SECRETARY Trustee or director, Officer | – | $0 |
| JUDY KIMBALL | SECRETARY Trustee or director, Officer | – | $0 |
| JOE KNOPP | DIRECTOR Trustee or director | – | $0 |
| ANDY LARSON | DIRECTOR Trustee or director | – | $0 |
| COLENE LIND | VICE PRESIDE Trustee or director, Officer | – | $0 |
| JANET LOWELL | TREASURER Trustee or director, Officer | – | $0 |
| JANA MCKINLEY | DIRECTOR Trustee or director | – | $0 |
| MARY MERTZ | PRESIDENT Trustee or director, Officer | – | $0 |
| DORI MILLDYKE | PAST PRESIDE Trustee or director, Officer | – | $0 |
| LARISSA OSHIMA | DIRECTOR Trustee or director | – | $0 |
| MARGARET PENDLETON | DIRECTOR Trustee or director | – | $0 |
| LAUREN RITTERBUSH | DIRECTOR Trustee or director | – | $0 |
990 for the year ended December 31, 2023: 17 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| DAVE BAKER | DIRECTOR Trustee or director | – | $0 |
| LYNNE BERRY | SECRETARY Trustee or director, Officer | – | $0 |
| JANET DUNCAN | TREASURER Trustee or director, Officer | – | $0 |
| GLORIA FREELAND | DIRECTOR Trustee or director | – | $0 |
| ROBERT HAINES | DIRECTOR Trustee or director | – | $0 |
| BRAD HARTENSTEIN | DIRECTOR Trustee or director | – | $0 |
| CAROL HOCKERSMITH | PROGRAM CHAI Trustee or director, Officer | – | $0 |
| JUDY KIMBALL | DIRECTOR Trustee or director | – | $0 |
| ANDY LARSON | DIRECTOR Trustee or director | – | $0 |
| COLENE LIND | SECRETARY Trustee or director, Officer | – | $0 |
| JANET LOWELL | DIRECTOR Trustee or director | – | $0 |
| MARY MERTZ | VICE PRESIDE Trustee or director, Officer | – | $0 |
| DORI MILLDYKE | PAST PRESIDE Trustee or director, Officer | – | $0 |
| MARGARET PENDLETON | SECRETARY Trustee or director, Officer | – | $0 |
| JANICE REITZ | DIRECTOR Trustee or director | – | $0 |
| MARY STAMEY | DIRECTOR Trustee or director | – | $0 |
| DEBBI THOMPSON | PRESIDENT Trustee or director, Officer | – | $0 |
Address and contacts
- Address (IRS master file)
- 2309 CLAFLIN RD, MANHATTAN, KS 66502-3421
- Principal officer (990 for 2025)
- MARY MERTZ, 7280 ZEANDALE RD, MANHATTAN, KS 66502
- Signed the 990
- MARY MERTZ, PRESIDENT
- Phone
- (785) 565-6490
- Website
- WWW.RILEYCHS.COM
- Return prepared by
- SINK GORDON ACCOUNTANTS & ADVISORS LLP
Mission
PRESERVATION, PRESENTATION AND PROMOTION OF LOCAL AND KANSAS HISTORY.
Program accomplishments
- WOLF HOUSE MUSEUM: 1868 HISTORIC STONE HOUSE MUSEUM FEATURING TOURS, EXHIBITS AND PROGRAMS FOR CHILDREN AND ADULTS. THROUGH THIS PROPERTY THE SOCIETY RESEARCHES, DOCUMENTS AND EXHIBITS MANHATTAN/RILEY COUNTY HOME LIFE OF THE PAST.Expenses $9,713
- SUPPORT FOR THE RILEY COUNTY HISTORICAL MUSEUM THROUGH COLLECTION AND PRESERVATION OF OBJECTS AND RECORDS; PRESERVATION IN ALL FORMS; MUSEUM TOURS, EXHIBITS AND PROGRAMS; LIBRARY/ARCHIVES SERVICES; OUTREACH TOURS, PROGRAMS, EXHIBITS; AND DIGITAL PRINT PUBLICATIONS.Expenses $185,004 · grants $32,500 · revenue $4,678
- RILEY COUNTY HISTORICAL SOCIETY HISTORIC/EDUCATIONAL PROPERTIES: PIONEER LOG CABIN; ROCKY FORD SCHOOL; MOSES HOUSE; WOLF STUDIO; MANSFIELD HOUSE; EXHIBITS, PRESERVATION, PROGRAMS AND TOURS.revenue $7,750
- SUPPORT OF THE GOODNOW HOUSE MUSEUM: 1861 STONE HOME OF FREE STATE EDUCATOR ISAAC GOODNOW, THROUGH PRESERVATION, TOURS, EXHIBITS, PROGRAMS. THIS IS A KANSAS STATE HISTORICAL SOCIETY PARTNERSHIP SITE.Expenses $1,204 · revenue $50
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 48-0646424
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1977
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Arts, culture and humanities (A82Z)
- Assets (IRS master file)
- $6,695,020
- Income (IRS master file)
- $1,312,971
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $604,478 | $200,634 | $6,695,020 | XML |
| 990 | December 2024 | $349,474 | $192,746 | $6,086,291 | XML |
| 990 | December 2023 | $195,640 | $115,720 | $5,616,429 | XML |
| 990 | December 2022 | $227,877 | $73,949 | $4,939,450 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2019 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 48-0646424).
Questions about RILEY COUNTY HISTORICAL SOCIETY
- What is the EIN of RILEY COUNTY HISTORICAL SOCIETY?
- The employer identification number (EIN) of RILEY COUNTY HISTORICAL SOCIETY is 48-0646424.
- Is RILEY COUNTY HISTORICAL SOCIETY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1977.
- Are donations to RILEY COUNTY HISTORICAL SOCIETY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does RILEY COUNTY HISTORICAL SOCIETY file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of RILEY COUNTY HISTORICAL SOCIETY due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did RILEY COUNTY HISTORICAL SOCIETY last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of RILEY COUNTY HISTORICAL SOCIETY?
- The 990 for the year ended December 31, 2025 names MARY MERTZ.
- Who are the officers and directors of RILEY COUNTY HISTORICAL SOCIETY?
- The 990 for the year ended December 31, 2025 lists 17 people; 0 received compensation from the organization.
- How much revenue does RILEY COUNTY HISTORICAL SOCIETY have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $604,478, expenses of $200,634 and total assets of $6,695,020 at year end.
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All nonprofits in MANHATTAN · Kansas · Arts, culture and humanities