Robert David Lion Gardiner
Riverhead, NY · EIN 13-3354308. Reported 269 grants totalling $19.6M to 146 organizations across tax years 2021-2024. This foundation did not tell the IRS it funds only preselected organizations.
Does this foundation accept applications?
Yes -- on its own tax return. Form 990-PF asks every private foundation whether it makes grants only to organizations it selects itself. Of the 91,758 foundations in our data that made a grant and answered, 78% said yes -- and applying to those is wasted effort. Robert David Lion Gardiner did not check that box on its most recent filing, which puts it in the minority that is at least open to being approached.
How big are its grants?
The median grant is $10,000. Half of everything it gave fell between $1,600 and $72,099; the smallest was $1,000 and the largest $1,500,000. If you are asking for materially more than the top of that range, you are asking the wrong foundation.
Every organization it funded
This is the complete list from its filings, largest first. Years funded is the number of separate tax years in which the organization received money -- more than one means a real relationship rather than a one-off.
| Organization | Location | Total received | Grants | Years funded | Last |
|---|---|---|---|---|---|
| New York Historical Society | New York, NY | $1,882,532 | 5 | 4 | 2024 |
| Cooper Union for the Adv of Science | New York, NY | $1,426,000 | 4 | 3 | 2024 |
| Long Island University | Brookville, NY | $1,389,136 | 4 | 4 | 2024 |
| PBS Foundation | Arlington, VA | $1,333,334 | 3 | 3 | 2024 |
| Columbia University | New York, NY | $922,017 | 3 | 3 | 2023 |
| Laguardia Community College Found | Long Island City, NY | $840,000 | 3 | 3 | 2023 |
| Cold Spring Harbor Laboratory | Cold Spring Harbor, NY | $757,746 | 4 | 4 | 2024 |
| Gilder Lehrman Institute of America | New York, NY | $750,000 | 3 | 3 | 2023 |
| Green-Wood Historic Fund | Brooklyn, NY | $630,000 | 3 | 3 | 2024 |
| Montauk Historical Society | Montauk, NY | $578,006 | 4 | 4 | 2024 |
| New York University | New York, NY | $519,700 | 3 | 3 | 2024 |
| Roslyn Landmark Society | Roslyn, NY | $505,975 | 4 | 4 | 2024 |
| Fireboat Fire Fighter Museum | Greenport, NY | $461,453 | 2 | 2 | 2024 |
| National Trust for Historic Preservation | Washington, DC | $333,334 | 1 | 1 | 2023 |
| National Trust for Historic Presv | Washingon, DC | $333,333 | 1 | 1 | 2024 |
| Raynham Hall Museum | Oyster Bay, NY | $304,600 | 3 | 3 | 2024 |
| Gilder Lehrman Inst of American His | New York, NY | $250,000 | 1 | 1 | 2024 |
| Laguardia Community College Fnd | Long Island City, NY | $250,000 | 1 | 1 | 2024 |
| North Shore Land Alliance | Mill Neck, NY | $250,000 | 1 | 1 | 2022 |
| The History Makers | Chicago, IL | $250,000 | 1 | 1 | 2024 |
| The Historymakers | Chicago, IL | $250,000 | 1 | 1 | 2023 |
| St Thomas Aquinas College | Sparkill, NY | $229,624 | 2 | 2 | 2024 |
| Research Foundation for SUNY Geneseo | Albany, NY | $201,749 | 1 | 1 | 2023 |
| Mystic Seaport Museum Inc | Mystic, CT | $197,534 | 1 | 1 | 2024 |
| Planting Fields Foundation | Oyster Bay, NY | $177,760 | 1 | 1 | 2021 |
| Cow Neck Peninsula Histocial Soc | Port Washington, NY | $150,645 | 4 | 4 | 2024 |
| Museum Association of New York | Troy, NY | $150,000 | 3 | 3 | 2024 |
| New Amsterdam History Center | New York, NY | $142,238 | 2 | 2 | 2022 |
| Oyster Bay Railroad Museum | Oyster Bay, NY | $136,700 | 2 | 2 | 2024 |
| Ketcham Inn Foundation Inc | Center Moriches, NY | $134,524 | 4 | 4 | 2024 |
| Oysterponds Historical Society | Orient, NY | $131,100 | 4 | 4 | 2024 |
| Three Village Historical Society | Setauket, NY | $131,100 | 4 | 4 | 2024 |
| Shelter Island Historical Society | Shelter Island, NY | $129,600 | 3 | 3 | 2024 |
| Greater Hudson Heritage Network | Elmsford, NY | $129,000 | 3 | 2 | 2024 |
| East Hampton Historical Society | East Hampton, NY | $126,600 | 2 | 2 | 2024 |
| Bayport Blue Point Heritage Assoc | Bayport, NY | $126,500 | 2 | 2 | 2022 |
| Smithtown Historical Society | Smithtown, NY | $126,000 | 2 | 2 | 2023 |
| Audubon New York | New York, NY | $125,000 | 1 | 1 | 2022 |
| East End African American Museum | Southampton, NY | $125,000 | 1 | 1 | 2021 |
| The Research Foundation for SUNY | Albany, NY | $124,990 | 1 | 1 | 2021 |
| New York State Archives Partnership | Albany, NY | $110,000 | 3 | 3 | 2024 |
| Brooklyn Public Library | Brooklyn, NY | $105,500 | 1 | 1 | 2024 |
| Research Foundation Geneseo | Albany, NY | $100,874 | 1 | 1 | 2024 |
| Lower East Side Tenement Museum | New York, NY | $100,000 | 1 | 1 | 2021 |
| The New York Landmarks Society | New York, NY | $100,000 | 2 | 2 | 2022 |
| Preservation Leauge of Nys | Albany, NY | $90,000 | 2 | 2 | 2023 |
| The Caumsett Foundation Inc | Huntington, NY | $86,824 | 2 | 2 | 2024 |
| Friends of the New York Transit Mus | Brooklyn, NY | $84,180 | 1 | 1 | 2021 |
| Rocky Point Historical Society | Rocky Point, NY | $84,100 | 4 | 4 | 2024 |
| Webb Institute | Glen Cove, NY | $80,000 | 3 | 3 | 2024 |
| Guild Hall of East Hampton Inc | East Hampton, NY | $70,419 | 1 | 1 | 2024 |
| Huntington Lighthouse Preservation | Halesite, NY | $62,725 | 1 | 1 | 2021 |
| Suffolk County Vanderbilt Museum | Centerport, NY | $58,170 | 2 | 2 | 2023 |
| Nassau County Museum of Fine Art | Roslyn Harbor, NY | $55,205 | 1 | 1 | 2024 |
| East End Seaport Museum & Marine | Greenport, NY | $55,000 | 2 | 2 | 2022 |
| New York University Library | New York, NY | $54,149 | 1 | 1 | 2022 |
| Van Wyck-Lefferts Tide Mill Sanctua | Lloyd Harbor, NY | $53,700 | 1 | 1 | 2023 |
| Jewish Historical Society of Long Island | Greenvale, NY | $52,000 | 1 | 1 | 2024 |
| Queens Museum | Queens, NY | $51,600 | 1 | 1 | 2024 |
| Long Island Children's Museum | Garden City, NY | $50,000 | 1 | 1 | 2024 |
| New York State Archives Ptr Trust | Albany, NY | $50,000 | 1 | 1 | 2024 |
| The New York Landmarks Conservancy | New York, NY | $50,000 | 1 | 1 | 2023 |
| Preservation League of Nys | Albany, NY | $45,000 | 1 | 1 | 2024 |
| Yaphank Historical Society | Yaphank, NY | $40,402 | 4 | 4 | 2024 |
| Messiah University | Mechanicsburg, PA | $39,251 | 4 | 4 | 2024 |
| Suffolk County Vanderbilt Museum and Planetarium | Centerport, NY | $38,320 | 1 | 1 | 2021 |
| Long Island Library Resources Council | Bellport, NY | $36,729 | 1 | 1 | 2024 |
| Byrd Hoffman Water Mill Foundation | Watermill, NY | $35,688 | 1 | 1 | 2024 |
| Michigan State University | East Lansing, MI | $35,000 | 3 | 3 | 2023 |
| Waterfront Museum | Brooklyn, NY | $34,820 | 3 | 3 | 2024 |
| Long Island Museum of American Art History and Carriages | Stony Brook, NY | $34,001 | 1 | 1 | 2024 |
| Ward Melville Heritag Organization | Stony Brook, NY | $32,125 | 1 | 1 | 2021 |
| Moriches Bay Historical Society | Center Moriches, NY | $30,000 | 1 | 1 | 2021 |
| Marist College | Poughkeepsie, NY | $25,000 | 2 | 2 | 2022 |
| The Church | Sag Harbor, NY | $25,000 | 1 | 1 | 2024 |
| University at Albany | Albany, NY | $25,000 | 3 | 3 | 2024 |
| Long Island Seaport and Eco Center | Port Jefferson, NY | $24,568 | 1 | 1 | 2024 |
| Sons of the Revolution of the State of New York | New York, NY | $22,994 | 1 | 1 | 2024 |
| Heckscher Museum | Huntington, NY | $22,200 | 3 | 3 | 2024 |
| Friends of Raynham Hall | Oyster Bay, NY | $22,139 | 1 | 1 | 2024 |
| Suffolk County Historical Society | Riverhead, NY | $20,000 | 2 | 2 | 2023 |
| Historical Society of Greater Port Jefferson | Port Jefferson, NY | $13,033 | 2 | 2 | 2024 |
| Hampton Bays Lions Club | Hampton Bays, NY | $12,000 | 4 | 4 | 2024 |
| Quogue Historical Society | Quogue, NY | $11,600 | 1 | 1 | 2024 |
| Long Beach Historical and Preservation Society | Long Beach, NY | $11,000 | 2 | 2 | 2024 |
| The Jazz Loft | Stony Brook, NY | $10,755 | 4 | 4 | 2024 |
| Renee & Chaim Gross Foundation | New York, NY | $10,500 | 1 | 1 | 2021 |
| Boston College | Chestnut Hill, MA | $10,000 | 3 | 3 | 2023 |
| Caroline Church of Brookhaven | Setauket, NY | $10,000 | 1 | 1 | 2022 |
| Conscience Point Shellfish Hatchery | Southampton, NY | $10,000 | 1 | 1 | 2024 |
| North Sea Community School House Association | Southampton, NY | $10,000 | 1 | 1 | 2024 |
| Sag Harbor Historical Museum | Sag Harbor, NY | $10,000 | 1 | 1 | 2024 |
| The Victor D'amico Institute of Art | Amaganset, NY | $10,000 | 1 | 1 | 2024 |
| Wading River Cemetery Association | Wading River, NY | $10,000 | 1 | 1 | 2023 |
| Mattituck Laurel Historical Society | Mattituck, NY | $9,610 | 2 | 2 | 2024 |
| Davis Town Meeting House Society | Coram, NY | $9,500 | 1 | 1 | 2021 |
| Friends of Rock Hall Museum | Lawrence, NY | $9,500 | 4 | 4 | 2024 |
| Long Island Maritime Museum | West Sayville, NY | $9,277 | 1 | 1 | 2024 |
| Wading River Historical Society | Wading River, NY | $9,122 | 1 | 1 | 2024 |
| Historical Society of Islip Hamlet | Islip, NY | $8,693 | 1 | 1 | 2024 |
| Whaling Museum & Education Center | Cold Spring Harbor, NY | $8,025 | 1 | 1 | 2024 |
| Association of Public Historians of Nys | Babylon, NY | $8,000 | 1 | 1 | 2024 |
| Southold Indian Museum | Southold, NY | $7,739 | 1 | 1 | 2022 |
| Greater Westhampton Historical Museums | Westhampton Beach, NY | $7,675 | 1 | 1 | 2024 |
| Hamilton College | Clinton, NY | $7,500 | 3 | 3 | 2023 |
| Greater Patchogue Foundation Inc | Patchogue, NY | $7,295 | 1 | 1 | 2024 |
| Bellport-Brookhaven Historical Society | Bellport, NY | $7,100 | 4 | 4 | 2024 |
| Hallockville Museum Farm | Riverhead, NY | $7,100 | 4 | 4 | 2024 |
| St Joseph's College | Patchogue, NY | $6,986 | 1 | 1 | 2021 |
| Garden City Historical Society | Garden City, NY | $5,600 | 3 | 3 | 2024 |
| Lake Ronkonkoma Historical Society | Lake Ronkonkoma, NY | $5,600 | 3 | 3 | 2024 |
| Miller Place Mount Sinai Historical Society | Miller Place, NY | $5,500 | 1 | 1 | 2024 |
| Dartmouth College | Hanover, NH | $5,000 | 1 | 1 | 2024 |
| Huntington Historical Society | Huntington, NY | $4,600 | 3 | 3 | 2024 |
| Walt Whitman Birthplace Association | Huntington, NY | $4,600 | 3 | 3 | 2024 |
| Southold Historical Society | Southold, NY | $4,500 | 3 | 3 | 2023 |
| Village of Babylon Historical Socie | Babylon, NY | $4,500 | 3 | 3 | 2023 |
| Preservation Long Island | Cold Spring Harbor, NY | $3,100 | 2 | 2 | 2024 |
| Lake Ronkonkoma Heritage Assoc | Lake Ronkonkoma, NY | $3,000 | 2 | 2 | 2022 |
| Southampton African American Muse | Southampton, NY | $3,000 | 2 | 2 | 2022 |
| Graphic Image Group Inc | East Hampton, NY | $2,800 | 1 | 1 | 2022 |
| The Longwood Alliance Inc | Middle Island, NY | $2,623 | 1 | 1 | 2022 |
| Harold Holzer | New York, NY | $2,500 | 1 | 1 | 2024 |
| Rites of Spring Music Festival Inc | Southold, NY | $2,500 | 1 | 1 | 2023 |
| Sea Education Association Inc | Falmouth, MA | $2,500 | 1 | 1 | 2021 |
| Bridgehampton Museum | Bridgehampton, NY | $1,600 | 1 | 1 | 2024 |
| Celebrate St James Past Present Future | St James, NY | $1,600 | 1 | 1 | 2024 |
| East End Seaport Museum and Marine Foundation | Greenport, NY | $1,600 | 1 | 1 | 2024 |
| Friends of Old Bethpage Restoration | East Williston, NY | $1,600 | 1 | 1 | 2024 |
| Ma's House & Bipoc Art Studio | Southampton, NY | $1,600 | 1 | 1 | 2024 |
| Southold Historical Museum | Southold, NY | $1,600 | 1 | 1 | 2024 |
| Stirling Historical Scociety of Greenport | Greenport, NY | $1,600 | 1 | 1 | 2024 |
| The Agricultural Society Fund | East Williston, NY | $1,600 | 1 | 1 | 2024 |
| Village of Babylon Historical and Preservation Society | Babylon, NY | $1,600 | 1 | 1 | 2024 |
| Babylon Town Historical Society | Babylon, NY | $1,500 | 1 | 1 | 2022 |
| Eastville Community Historical Soci | Sag Harbor, NY | $1,500 | 1 | 1 | 2021 |
| Greater Patchogue Historical Soc | Patchogue, NY | $1,500 | 1 | 1 | 2021 |
| Greater Patchogue Historical Societ | Patchogue, NY | $1,500 | 1 | 1 | 2023 |
| Local Tv Inc | Wainscott, NY | $1,500 | 1 | 1 | 2021 |
| Northport Historical Society | Northport, NY | $1,500 | 1 | 1 | 2023 |
| Southampton Historical Museum | Southampton, NY | $1,500 | 1 | 1 | 2021 |
| Southampton History Museum | Southampton, NY | $1,500 | 1 | 1 | 2023 |
| Ws Commerdinger JR County Park | Nesconset, NY | $1,500 | 1 | 1 | 2021 |
| Arts Project of Cherry Grove Ny | Cherry Grove, NY | $1,000 | 1 | 1 | 2022 |
| Friends of Cedarmere Inc | Roslyn Harbor, NY | $1,000 | 1 | 1 | 2023 |
| Sag Harbor Historical Society | Sag Harbor, NY | $1,000 | 1 | 1 | 2023 |
62 of 146 (42%) received money in more than one year over the 4 years we hold.
Measured the way we measure every foundation -- what share of one year's grantees are funded again the next -- this one retains 61%, across 3 year-to-year transitions. The median foundation retains about 67%, so this one is about typical. A high number means its list is close to settled and a newcomer has to displace someone; a low one means it is still moving money around, which is where an opening is.
What the money was for
Taken verbatim from the purpose field of its filings. This is the closest thing to a statement of what this foundation cares about, in its own words.
- Long Island University
2022 GRANT AWARD AND ENDOWMENT - Cooper Union for the Adv of Science
2022 GRANT 3 OF 3, AND 2024 GRANT - Research Foundation for SUNY Geneseo
2021 GRANT AWARD 1 AND 2 OF 3 - Friends of the New York Transit Mus
2020 GRANT PAYMENT 2 OF 2 - Montauk Historical Society
2024 GARDINER YOUNG SCHOLAR - Michigan State University
GEORGE GURNEY 22/23, 23/24
What kind of organizations it funds
By the recipient's own IRS classification, for the 133 grants where we could identify the organization. These are assigned categories, not our guesses.
Giving by year
| Tax year | Grants | Total | Median grant |
|---|---|---|---|
| 2021 | 59 | $4,946,291 | $10,500 |
| 2022 | 58 | $4,209,512 | $11,140 |
| 2023 | 61 | $3,955,695 | $3,000 |
| 2024 | 91 | $6,448,848 | $10,000 |
Tax years, not calendar years, and the most recent year is usually incomplete -- filings arrive about a year late, so a low final year means late paperwork rather than a foundation winding down.
Already committed for future years
Form 990-PF has a separate schedule for grants approved but not yet paid. Robert David Lion Gardiner has 7 of them, worth $5,000,700. This is the one part of the filing that looks forward rather than back -- and it also tells you how much of the next year's budget is already spoken for.
| Organization | Location | Approved |
|---|---|---|
| Cold Spring Harbor Laboratory | Cold Spring Harbor, NY | $2,500,000 |
| New York Historical Society | New York, NY | $1,500,000 |
| New York University | New York, NY | $900,000 |
| Long Island Children's Museum | Garden City, NY | $50,000 |
| Dartmouth College | Hanover, NH | $35,000 |
| Whaling Museum & Education Center | Cold Spring Harbor, NY | $8,025 |
| Greater Westhampton Historical Museums | Westhampton Beach, NY | $7,675 |
Where its money goes
Foundations concentrate geographically far more than their mission statements suggest. 86% of this one's giving went to organizations in New York. If you are outside its footprint, that matters more than how well your programme fits.
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Funders that support the same organizations
These funders gave to organizations this one also funded -- some private foundations, some community foundations and other grantmaking charities. Shared grantees are the strongest available signal that two funders have overlapping priorities, and a funder already backing your peers is a far warmer prospect than one that merely lists your cause.
How to approach this foundation
- Check you are its size. The median grant is $10,000. Asking for ten times that is the most common way small organizations waste a submission.
- Check you are in its geography. Its giving is concentrated in New York.
- Read the recipient list above for organizations like yours. If nothing on it resembles your work, that is a real answer, and a cheap one to get.
- Look up the current filing before writing. The 990-PF names the foundation's officers and, where one exists, its application procedure. We link it below.
Related guides
Where these numbers come from
Everything above is taken from Robert David Lion Gardiner's own Form 990-PF filings, which the IRS publishes in bulk. We used 4 returns (tax years 2021-2024). Nothing here is scraped, inferred, or estimated.
Address of record on the latest return: 30 W Main St Suite 309, Riverhead, NY, 11901. This is the address the foundation gave the IRS; many small foundations file through an accountant or a bank trust department, so it may not be where post to a programme officer should go.
EIN 13-3354308 · See the original filings on ProPublica · How we build this
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