California · Nonprofit
Western Sonoma County Historical Society
Western Sonoma County Historical Society (California) receives grants from 1 organization whose IRS filings report $5,569 to it, the largest being OLIVER & JENNIE DONALDSON CHAR(1071 ($5,569). 0 of them have funded it in more than one year.
- Revenue FY2025
- $61k
- Funders on record
- 1
- Grants received
- $6k
- Net assets
- $105k
What Western Sonoma County Historical Society does
Mission
The purpose of the Western Sonoma County Historical Society (WSCHS) is to preserve the history of Western Sonoma County by archiving photographs, artifacts, oral histories, and by the preservation of historic buildings. WSCHS also operates a Museum located in a 1917 Railroad Station in Sebastopol. WSCHS also maintains and operates the remaining 2/12 acres of Luther Burbanks Experiment Farm in Sebastopol. The Farm includes Burbank's restored Cottage, Burbank's reconstructed barn, plus many of Burbank's original plants.
As stated on its FY2025 Form 990-EZ.
Programs
The preservation and development of the remaining 2 acres of Luther Burbanks Experiment Farm in Sebastopol (originally approximately 26 acres). Under the direction of the Farm Director and a contracted horticulturist the work is performed by a group of volunteers who perform, on at least a weekly basis, the maintenance of the grounds, Burbanks restored Cottage (restored by the WSCHS) and Barn (rebuilt by the WSCHS). They also maintain a nursery for the propagation of plants for sale and for Farm use, many of these plants are cultivated from original Burbank stock. The Farm is open to the public, and tours, either self-guided or docent led, are available. The Farm is also visited by many school and horticultural groups in the area, and by Burbank fans from all over the world.
$19,768 spent74% of program spendingThe WSCHS operates the West County Museum in Sebastopol. The Museum is housed in a Railroad Station built in 1917. The building was restored by WSCHS volunteers in 1993. The Museum offers exhibits which are rotated regularly and are open to the public. There is also a permanent section of the Museum which provides a history of the area. Under the direction of the Museum Director volunteers perform many functions, including: creation of exhibits; archiving of photos, artifacts, documents; recording oral histories; maintenance of the property. The Museum has digitized more than 6,000 photos, artifacts, and newspaper articles, and maintains the images in a software program designed for museums. The Museum also reaches out to the community to provide information to service groups, schools etc. in the form of oral, photographic or video presentations. The Museum also serves as a reference resource for people researching personal or general history of the area.
$2,452 spent9% of program spendingEach year in October, for 21 years, the WSCHS organizes the Sebastopol Cemetery Walk. This is performed at the Farm and the adjacent Sebastopol Memorial Lawn Cemetery. The program consists of six or seven skits based on area historical figures and events, primarily on people buried in the cemetery. Scripts are written and performed by volunteers. On the first Friday and Saturday night of October four groups of 24 people are guided through the Farm and the Cottage to the six or seven locations in the cemetery where the skits are performed. This event is the major fundraiser for WSCHS and is a sell out every year.
$4,438 spent17% of program spending
The 3 programs described on its FY2025 Form 990-EZ. Program spending in total: $26,658.
The organization over time
Each line starts at 100 in 2024, so what you read is the shape rather than the size: 150 means half as much again as 2024, 50 means half. The number beside each label in the key is where it ended.
Balance sheet
Total assets at each year end, in dollars. The largest one-year move in total assets was 2024 to 2025, from $90k to $105k (+16%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 2 reported years ran a deficit.
Who funds it, year by year
Grant support over time, funder by funder — shade shows the grant size each year.
From the IRS filings of Western Sonoma County Historical Society’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Where its funders are
Western Sonoma County Historical Society draws 100% of its grant income from funders outside California, across 1 state in all.
Funder states come from each funder’s own filing. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Organizations like Western Sonoma County Historical Society
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Public support
0%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Screen this organization
A dated, signed PDF of the compliance screen for Western Sonoma County Historical Society: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds Western Sonoma County Historical Society?
- Western Sonoma County Historical Society (California) receives grants from 1 organization whose IRS filings report $5,569 to it, the largest being OLIVER & JENNIE DONALDSON CHAR(1071 ($5,569). 0 of them have funded it in more than one year.
- How many funders does Western Sonoma County Historical Society have?
- IRS filings report 1 organization giving $5,569 in grants to Western Sonoma County Historical Society.
- Who is the largest funder of Western Sonoma County Historical Society?
- OLIVER & JENNIE DONALDSON CHAR(1071 is the largest funder on record, with $5,569 in grants. The full list of funders is on this page.
- How can an organization like Western Sonoma County Historical Society find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
Play a game about who funds Western Sonoma County Historical Society →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2024–2025), and the filings of 1 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing