STONE MAP AND ATLAS FOUNDATION
Cite this
Plain text STONE MAP AND ATLAS FOUNDATION. furp.org, nonprofit organization profile, tax years 2019–2024. https://furp.org/org/stone-map-and-atlas-foundation-201945131. Retrieved 2026-10-29.
APA furp.org. (n.d.). STONE MAP AND ATLAS FOUNDATION [Nonprofit organization profile; tax years 2019–2024]. Retrieved October 29, 2026, from https://furp.org/org/stone-map-and-atlas-foundation-201945131
MLA “STONE MAP AND ATLAS FOUNDATION.” furp.org, tax years 2019–2024, https://furp.org/org/stone-map-and-atlas-foundation-201945131. Accessed 29 Oct. 2026.
Retrieved 2026-10-29; covers tax years 2019–2024. Data: furp.org, CC BY 4.0.
2024 · Form 990PF · revenue $63 · expenses $56K · assets $10.0M
- EIN
- 20-1945131
- Address
- FOUNDATION SOURCE 501 SILVERSIDE RD, WILMINGTON, DE 19809-0000
- NTEE code
- A50
- Exempt type
- 501(c)(3): charitable, religious, educational, scientific or literary (corporation)
- Ruling date
- June 2005 (when the IRS recognized its exemption)
- IRS status
- Exempt (unconditional) (IRS Business Master File) IRS data ↗
- Tax-deductible donations
- Yes: listed in IRS Publication 78 (private operating foundation) Pub 78 ↗
- Foundation status
- Private operating foundation
- Cross-check
- ProPublica Nonprofit Explorer
Each tax year counts once: when a return was amended, only the latest return for that period is used below (superseded returns stay listed, greyed, under Finances).
People paid by the organization
None of the 2 people listed on these returns reported compensation from the organization. They are listed below.
Officers and directors, no compensation reported
2 people listed on the returns with $0 (or no amount) in every compensation column: current people first. Hours are as filed on the latest return each person appears on.
| Name | Latest title | Years | Hrs/wk (latest) | Compensation | Organizations |
|---|---|---|---|---|---|
| Karen M Stone | Dir | 2019-2024 | 1 | $0 reported | 2 |
| Michael R Stone | Pres, Dir, Sec | 2019-2024 | 1 | $0 reported | 2 |
People by year
2024 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| Karen M Stone | Dir | 1 | $0 | - | $0 | $0 | 2 |
| Michael R Stone | Pres, Dir, Sec | 1 | $0 | - | $0 | $0 | 2 |
2023 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| Karen M Stone | Dir | 1 | $0 | - | $0 | $0 | 2 |
| Michael R Stone | Pres, Dir, Sec | 1 | $0 | - | $0 | $0 | 2 |
2022 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| Karen M Stone | Dir | 1 | $0 | - | $0 | $0 | 2 |
| Michael R Stone | Pres, Dir, Sec | 1 | $0 | - | $0 | $0 | 2 |
2021 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| Karen M Stone | Dir | 1 | $0 | - | $0 | $0 | 2 |
| Michael R Stone | Pres, Dir, Sec | 1 | $0 | - | $0 | $0 | 2 |
2020 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| Karen M Stone | Dir | 1 | $0 | - | $0 | $0 | 2 |
| Michael R Stone | Pres, Dir, Sec | 1 | $0 | - | $0 | $0 | 2 |
2019 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| Karen M Stone | Dir | 1 | $0 | - | $0 | $0 | 2 |
| Michael R Stone | Pres, Dir, Sec | 1 | $0 | - | $0 | $0 | 2 |
Highest-paid independent contractors
No independent contractors reported.
Who the money went to
Grants this organization reported paying: Schedule I Part II of the Form 990, or the grants-paid list on the 990-PF. Open a year for every recipient. Recipients link to their own page when the grant names an EIN we have (990-PF grants list no EIN, so those link only on an exact, unique name and state). Grants to individuals are counted; their names are not shown.
2023 · 1 grant to organizations · $2.9M
Negative amounts are returned or refunded grants; they are listed last and left out of the totals of grants paid.
Who gave
Contributors listed on Schedule B of the Form 990-PF: name, city and state as filed (street addresses are not shown), with total and noncash contributions for the year. A link to an organization's page is tagged Fuzzy with its name-similarity score (0 to 1) when it rests on name and state; Schedule B lists no EIN, so no link here is an exact identifier match.
2021 · 1 contributor · $186K
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 1 | Stone Michael R | Person | La Jolla, CA | $185,788 | $185,788 | Form 990PF Sch. B, 2021 · filing |
2019 · 1 contributor · $7K
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 1 | Stone Michael R | Person | La Jolla, CA | $6,863 | - | Form 990PF Sch. B, 2019 · filing |
Contributors listed here are as reported on the filing. Unusual is not the same as improper. Many of these patterns have ordinary explanations. Check the filing.
Finances
Newest first. Each filing: its name on one row, its figures on the row beneath. Greyed filings are superseded by a later return for the same period and are left out everywhere else on this page.
| Revenue | Expenses | Assets | Net assets | Contributions | Program revenue | Officer pay | Employees | Volunteers |
|---|---|---|---|---|---|---|---|---|
| 2024 · Form 990PF | ||||||||
| $63 | $56,133 | $9,961,350 | $9,961,350 | $0 | - | $0 | - | - |
| 2023 · Form 990PF | ||||||||
| $11,478 | $3,091,270 | $10,017,420 | $10,017,420 | $0 | - | $0 | - | - |
| 2023 · Form 990PF | ||||||||
| $11,478 | $3,091,270 | $10,017,420 | $10,017,420 | $0 | - | $0 | - | - |
| 2022 · Form 990PF | ||||||||
| $11,579 | $214,141 | $13,097,212 | $13,097,212 | $0 | - | $0 | - | - |
| 2021 · Form 990PF | ||||||||
| $721,400 | $193,447 | $13,299,774 | $13,299,774 | $185,788 | - | $0 | - | - |
| 2020 · Form 990PF | ||||||||
| $4,023 | $214,333 | $12,771,821 | $12,771,821 | $0 | - | $0 | - | - |
| 2019 · Form 990PF | ||||||||
| $17,141 | $339,342 | $12,982,131 | $12,982,131 | $6,863 | - | $0 | - | - |
Connected to
Organizations that list some of the same people on their returns (officers, directors, key employees on this organization’s latest return), and related organizations it lists on Schedule R.
- MICHAEL AND KAREN STONE FAMILY FOUNDATION INC Wilmington, DE · 2 people in common (Karen M Stone, Michael R Stone)
Funders of this organization
Not reported: no grants to this organization appear in the filings we have (tax years 2010 to 2025).
Similar organizations
Ranked without any AI: same NTEE code first, then the same NTEE group; then revenue within 2x, 5x or 10x; then the same state; then similar name and mission text. Same state only · More (100)
| Organization | State | NTEE | Latest revenue | Latest expenses | Top-paid title | Top pay | Why similar |
|---|---|---|---|---|---|---|---|
| ART SUPPORTING FOUNDATION | CA | A50 | $100 | $34,059 | PRESIDENT | $0 | Same NTEE code A50, revenue within 2x |
| JAFFREY PRESERVATION ALLIANCE | NH | A50 | $64 | $1,000 | President | $0 | Same NTEE code A50, revenue within 2x |
| FENWAY PARK LIVING MUSEUM FUND | MA | A50 | $67 | $6,528 | President/Director | $0 | Same NTEE code A50, revenue within 2x |
| ROGERS MOUNTAINEER ATHLETIC HALL OF FAME INC | AR | A50 | $101 | $696 | PRESIDENT | $0 | Same NTEE code A50, revenue within 2x |
| WNY IRAQ AND AFGHANISTAN VETERANS MEMORIAL INC | NY | A50 | $120 | $487 | CHAIRPERSON | $0 | Same NTEE code A50, revenue within 2x |
| BUTTERFLY HOUSE EDUCATIONAL SERVICES INC | OH | A50 | $50 | - | Pres/Treas | $0 | Same NTEE code A50, revenue within 2x |
| THE MONK US MEMORIAL FOUNDATION | MD | A50 | $294 | $364 | CEO AND PRESIDENT | $0 | Same NTEE code A50, revenue within 5x |
| ACADIANA LIVING HISTORY FOUNDATION INC | LA | A50 | $245 | $2,139 | DIRECTOR | $0 | Same NTEE code A50, revenue within 5x |
| NATIONAL ASSOCIATION OF WATCH AND CLOCK COLLECTORS INC | NE | A50 | $301 | $475 | Treasurer | $0 | Same NTEE code A50, revenue within 5x |
| CALIFORNIA AVIATION HALL OF FAME | CA | A50 | $150 | $150 | Treasurer/Direc | $0 | Same NTEE code A50, revenue within 5x |
| NATIONAL HURRICANE MUSEUM & SCIENCE CENTER | LA | A50 | $31 | $42,986 | CHAIRMAN | $0 | Same NTEE code A50, revenue within 5x |
| FARMALL LAND NEW ENGLAND | CT | A50 | $250 | $22,282 | DIRECTOR | $0 | Same NTEE code A50, revenue within 5x |
| PLAINFIELD GRAND ROGUE HISTORICAL SOCIETY | MI | A50 | $30 | - | PRESIDENT | $0 | Same NTEE code A50, revenue within 5x |
| ANCESTRY | MI | A50 | $301 | $4,302 | PRESIDENT/TREASURER | $0 | Same NTEE code A50, revenue within 5x |
| NASHVILLE FIRE MUSEUM | TN | A50 | $230 | $162 | PRESIDENT | $0 | Same NTEE code A50, revenue within 5x |
| PATTERSON MEMORIAL CENTER | OH | A50 | $175 | $2,332 | Director | $0 | Same NTEE code A50, revenue within 5x |
| LAURA CENTER FOR CREOLE HERITAGE | LA | A50 | $150 | $0 | Trustee | $0 | Same NTEE code A50, revenue within 5x |
| MONTGOMERY COUNTY JOINT LAW ENFORCEMENT MUSEUM INC | MD | A50 | $280 | $169 | chairman | $0 | Same NTEE code A50, revenue within 5x |
| MUSEUM OF THE HARDWOOD TREE | AR | A50 | $263 | $4,413 | PRESIDENT | $0 | Same NTEE code A50, revenue within 5x |
| KULTUR HAUS HELVETIA INC | WV | A50 | $260 | $1,008 | PRESIDENT | $0 | Same NTEE code A50, revenue within 5x |
| JERRYS DREAM MUSEUM AND FOUNDATION | NE | A50 | $465 | $1,122 | PRESIDENT/TREAS | $0 | Same NTEE code A50, revenue within 10x |
| MILTON RAY LOYD FOUNDATION | CA | A50 | $385 | $179 | PRESIDENT | $0 | Same NTEE code A50, revenue within 10x |
| THE PAUL RUDOLPH FOUNDATION INC | NY | A50 | $378 | $25,013 | President | $0 | Same NTEE code A50, revenue within 10x |
| NATIONAL MUSEUM OF DANCE | NY | A50 | $10 | $9,471 | DIRECTOR | $0 | Same NTEE code A50, revenue within 10x |
| AFRICAN AMERICAN INTERPRETIVE CENTER OF MINNESOTA | MN | A50 | $400 | $1,107 | Director | $0 | Same NTEE code A50, revenue within 10x |
Who funds organizations like this
Grantors that funded the 100 most similar organizations. Ranked by total given to them. Foundations (990-PF) and donor-advised fund sponsors only. Same matching as Funders above (by EIN, or by name for foundations).
The full list · all similar organizations
Where the money went
Every expense line on each return, biggest first: Form 990 Part IX (with its program, management and fundraising columns), 990-EZ Part I, or 990-PF Part I. Event marks lines the organization itself describes as events. “Events” in each summary adds those lines, conferences and meetings, and the direct costs of fundraising events. Unusual is not the same as improper. Many of these patterns have ordinary explanations. Check the filing.
2024 · Form 990PF · $56,133 spent · pay $0 · grants $0 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Other expenses | $43,279 | 77.1% | |
| Occupancy | $10,673 | 19.0% | |
| Fees: other professional | $1,648 | 2.9% | |
| Taxes | $533 | 0.9% | |
| Total | $56,133 | 100% |
2023 · Form 990PF · $3,091,270 spent · pay $0 · grants $2,900,000 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $2,900,000 | 93.8% | |
| Occupancy | $108,732 | 3.5% | |
| Other expenses | $45,282 | 1.5% | |
| Fees: other professional | $35,063 | 1.1% | |
| Depreciation and depletion | $1,580 | 0.1% | |
| Taxes | $613 | 0.0% | |
| Total | $3,091,270 | 100% |
2022 · Form 990PF · $214,141 spent · pay $0 · grants $0 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Occupancy | $119,659 | 55.9% | |
| Fees: other professional | $34,733 | 16.2% | |
| Other expenses | $29,184 | 13.6% | |
| Taxes | $27,079 | 12.6% | |
| Depreciation and depletion | $3,186 | 1.5% | |
| Printing and publications | $300 | 0.1% | |
| Total | $214,141 | 100% |
2021 · Form 990PF · $193,447 spent · pay $0 · grants $0 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Occupancy | $103,914 | 53.7% | |
| Other expenses | $42,300 | 21.9% | |
| Fees: other professional | $40,545 | 21.0% | |
| Depreciation and depletion | $4,209 | 2.2% | |
| Taxes | $2,179 | 1.1% | |
| Printing and publications | $300 | 0.2% | |
| Total | $193,447 | 100% |
2020 · Form 990PF · $214,333 spent · pay $0 · grants $0 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Occupancy | $104,142 | 48.6% | |
| Depreciation and depletion | $42,576 | 19.9% | |
| Fees: other professional | $40,750 | 19.0% | |
| Other expenses | $25,550 | 11.9% | |
| Taxes | $1,015 | 0.5% | |
| Printing and publications | $300 | 0.1% | |
| Total | $214,333 | 100% |
2019 · Form 990PF · $339,342 spent · pay $26,230 · grants $0 · events $2,804
| Line | As described | Total | Share |
|---|---|---|---|
| Occupancy | $93,528 | 27.6% | |
| Depreciation and depletion | $80,494 | 23.7% | |
| Fees: other professional | $68,935 | 20.3% | |
| Other expenses | $42,446 | 12.5% | |
| Other salaries and wages | $24,014 | 7.1% | |
| Fees: accounting | $22,000 | 6.5% | |
| Travel, conferences and meetings | $2,804 | 0.8% | |
| Pension plans and employee benefits | $2,216 | 0.7% | |
| Printing and publications | $1,355 | 0.4% | |
| Taxes | $1,145 | 0.3% | |
| Fees: legal | $405 | 0.1% | |
| Total | $339,342 | 100% |
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