Maine · Nonprofit
Islesboro Historical Society Inc
Islesboro Historical Society Inc (Maine) receives grants from 5 organizations whose IRS filings report $8,939 to it, the largest being THE JOCKEY HOLLOW FOUNDATION INC ($6,500). 4 of them have funded it in more than one year.
- Revenue FY2024
- $102k
- Funders on record
- 5
- Grants received
- $9k
- Net assets
- $634k
What Islesboro Historical Society Inc does
Mission
To bring together people interested in the history of Islesboro, for the purpose of collecting, preserving, presenting and promoting materials related to the history of the town and its place in local, regional, and national history. Materials include printed and manuscript documents and records, paintings, photographs, maps, objects, artifacts and buildings associated with the history of Islesboro and its residents.The Society also seeks to preserve, promote and interpret and sustain the culture of Islesboro and its residents, by hosting, sponsoring, and supporting activities and events that celebrate and sustain that culture in all its various forms.
As stated on its FY2024 Form 990.
Programs
Maintenance and Operation of the Building and Museum: During 2024, no significant replacement or improvement projects were carried out. $14,102 was spent on routine repairs & maintenance, security and occupancy costs, including electricity, as well as property maintenance. Another $2,817 was allocated to program services in regard to depreciation, bringing the total outlays for the year to $16,919.
$16,919 spent76% of program spendingHistorical Society Meetings, Lectures, Museum Public Exhibitions, Publications, Genealogy and Collections: Public exhibitions and programs are carried out in the Historical Society building and in the museum. In 2024, there were three evening educational programs. One was a presentation by Michael Mann entitled, "The History of Climate Change the second was a presentation by Taury Smith entitled, "Islesboro Rocks" concerning the geology of Islesboro; the third was a program presented by Tilley Laskey entitled, "Rose Cleveland's 700-Acre Model Farm". There were also three outdoor walking tours which covered the history of different areas of the Island. There were art shows in July & August, which generated significant revenue, an outdoor arts and crafts show featuring Island artisans, and an "Evening with Island Elders" at which four Island seniors spoke about their experiences on the Island and answered questions. The Historical Society also held its annual talent show in 2024.Of course, the Historical Society also regularly maintains, runs and adds to the collection in its museum, and maintains an extensive genealogy database.The Historical Society also publishes and sells…
$4,253 spent19% of program spendingScholarship Program: The scholarship program established in 2013 by the Islesboro Historical Society, continues with the award presented annually to an Islesboro High School graduate(s) interested in pursuing education at a secondary school/college. The Student's performance in history courses is one of the factors considered by the scholarship committee. Names and addresses of the awardees may be obtained by contacting the Islesboro Historical Society. In 2024, $1,000 in scholarship funds were paid out.
$1,000 spent5% of program spending
The 3 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $22,172.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2017 to 2018, from $456k to $535k (+17%).
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.
Government-grant reliance: 2021 2%. Grants only. Government contracts and fees sit inside program revenue.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 3 of the last 8 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Who funds it, year by year
2017 → 2023: the base broadened from 2 funders to 3 funders, grant income rose $1k → $2k.
1 of 5 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 0% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of Islesboro Historical Society Inc’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.
How concentrated its funding is
Islesboro Historical Society Inc leans on a few funders — its largest provides 73% of grant income and the top three 93%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
Largest funder’s share by year: 2017 83% · 2018 71% · 2019 67% · 2020 63% · 2021 100% · 2022 83% · 2023 92% — growing more concentrated.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. 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
Islesboro Historical Society Inc draws 93% of its grant income from funders outside Maine, across 4 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $39 arriving through sponsors registered in 1 state is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. 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 Islesboro Historical Society Inc
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 Maine
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
41% of spending goes to programs.
Governance
Public support
80%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for Islesboro Historical Society Inc: 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 Islesboro Historical Society Inc?
- Islesboro Historical Society Inc (Maine) receives grants from 5 organizations whose IRS filings report $8,939 to it, the largest being THE JOCKEY HOLLOW FOUNDATION INC ($6,500). 4 of them have funded it in more than one year.
- How many funders does Islesboro Historical Society Inc have?
- IRS filings report 5 organizations giving $8,939 in grants to Islesboro Historical Society Inc, 4 of which have funded it in more than one year.
- Who is the largest funder of Islesboro Historical Society Inc?
- THE JOCKEY HOLLOW FOUNDATION INC is the largest funder on record, with $6,500 in grants. The full list of funders is on this page.
- How can an organization like Islesboro Historical Society Inc find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Maine. 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 Islesboro Historical Society →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2017–2024), and the filings of 5 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