MALIBU ADAMSON HOUSE FOUNDATION
Cite this
Plain text MALIBU ADAMSON HOUSE FOUNDATION. Strategy Studio, nonprofit organization profile, tax years 2020–2024. https://strategystudio.org/org/953713087. Retrieved 2026-10-20.
APA Strategy Studio. (n.d.). MALIBU ADAMSON HOUSE FOUNDATION [Nonprofit organization profile; tax years 2020–2024]. Retrieved October 20, 2026, from https://strategystudio.org/org/953713087
MLA “MALIBU ADAMSON HOUSE FOUNDATION.” Strategy Studio, tax years 2020–2024, https://strategystudio.org/org/953713087. Accessed 20 Oct. 2026.
Retrieved 2026-10-20; covers tax years 2020–2024. Data: Strategy Studio, CC BY 4.0.
2024 · Form 990 · revenue $465K · expenses $57K · assets $1.5M
- Also known as
- MALIBU LAGOON MUSEUM
- EIN
- 95-3713087
- Address
- PO BOX 291, MALIBU, CA 90265-0291
- Website
- ADAMSONHOUSE.ORG
- NTEE code
- A540
- Subsection
- 501(c)(3)
- Ruling year
- 1982
- Cross-check
- ProPublica Nonprofit Explorer
Mission
SUPPORT THE EDUCATIONAL AND INTERPRETIVE ACTIVITIES FOR THE MALIBU MUSEUM AND TO RAISE FUNDS FOR THE RESTORATION, REPAIR AND PRESERVATION OF THIS HISTORICAL SITE.
Each tax year counts once: when a return was amended, only the latest return for that period is used below (superseded returns stay listed, greyed, under Finances).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 13 people listed on these returns reported compensation from the organization. They are listed below.
Officers and directors, no compensation reported
13 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 |
|---|---|---|---|---|---|
| Jules Hershfeld | TREASURER | 2020-2024 | 4 | $0 reported | 1 |
| Nidra Winger | VICE PRESIDENT | 2020-2024 | 1 | $0 reported | 1 |
| Jefferson Wagner | DIRECTOR | 2020-2024 | 1 | $0 reported | 1 |
| Martha Juede | ARCHIVIST | 2020-2024 | 1 | $0 reported | 1 |
| Carol Jackson | SECRETARY | 2020-2024 | 1 | $0 reported | 1 |
| Robby Mazza | DIRECTOR-CENTER MANAGER | 2021-2024 | 8 | $0 reported | 1 |
| John Mazza | PRESIDENT | 2020-2024 | 2 | $0 reported | 1 |
| Christine Conway | DIRECTOR | 2020-2024 | 1 | $0 reported | 1 |
| Craig Sap (former) | DIRECTOR | 2022 | 1 | $0 reported | 1 |
| Ann Doneen (former) | DIRECTOR-PUBLICIST | 2020-2021 | 1 | $0 reported | 1 |
| Ted Vaill (former) | DIRECTOR | 2021 | 1 | $0 reported | 1 |
| Robbie Mazza (former) | BOARD MEMBER | 2020 | 2 | $0 reported | 1 |
| Ted Vaile (former) | BOARD MEMBBER | 2020 | 1 | $0 reported | 1 |
People by year
2024 · 8 people listed · none paid · 0 employees · 8 volunteers
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| JULES HERSHFELD | TREASURER | 4 | $0 | $0 | $0 | $0 | 1 |
| NIDRA WINGER | VICE PRESIDENT | 1 | $0 | $0 | $0 | $0 | 1 |
| JEFFERSON WAGNER | DIRECTOR | 1 | $0 | $0 | $0 | $0 | 1 |
| MARTHA JUEDE | ARCHIVIST | 1 | $0 | $0 | $0 | $0 | 1 |
| CAROL JACKSON | SECRETARY | 1 | $0 | $0 | $0 | $0 | 1 |
| ROBBY MAZZA | DIRECTOR-CENTER MANAGER | 8 | $0 | $0 | $0 | $0 | 1 |
| JOHN MAZZA | PRESIDENT | 2 | $0 | $0 | $0 | $0 | 1 |
| CHRISTINE CONWAY | DIRECTOR | 1 | $0 | $0 | $0 | $0 | 1 |
2023 · 8 people listed · none paid · 0 employees · 10 volunteers
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| JULES HERSHFELD | TREASURER | 4 | $0 | $0 | $0 | $0 | 1 |
| NIDRA WINGER | VICE PRESIDENT | 1 | $0 | $0 | $0 | $0 | 1 |
| JEFFERSON WAGNER | DIRECTOR | 1 | $0 | $0 | $0 | $0 | 1 |
| MARTHA JUEDE | ARCHIVIST | 1 | $0 | $0 | $0 | $0 | 1 |
| CAROL JACKSON | SECRETARY | 1 | $0 | $0 | $0 | $0 | 1 |
| ROBBY MAZZA | DIRECTOR-CENTER MANAGER | 8 | $0 | $0 | $0 | $0 | 1 |
| JOHN MAZZA | PRESIDENT | 2 | $0 | $0 | $0 | $0 | 1 |
| CHRISTINE CONWAY | DIRECTOR | 1 | $0 | $0 | $0 | $0 | 1 |
2022 · 9 people listed · none paid · 0 employees · 9 volunteers
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| JULES HERSHFELD | TREASURER | 4 | $0 | $0 | $0 | $0 | 1 |
| NIDRA WINGER | PRESIDENT | 2 | $0 | $0 | $0 | $0 | 1 |
| JEFFERSON WAGNER | VICE PRESIDENT | 1 | $0 | $0 | $0 | $0 | 1 |
| MARTHA JUEDE | ARCHIVIST | 1 | $0 | $0 | $0 | $0 | 1 |
| CAROL JACKSON | SECRETARY | 1 | $0 | $0 | $0 | $0 | 1 |
| ROBBY MAZZA | DIRECTOR-CENTER MANAGER | 8 | $0 | $0 | $0 | $0 | 1 |
| JOHN MAZZA | DIRECTOR | 1 | $0 | $0 | $0 | $0 | 1 |
| CHRISTINE CONWAY | DIRECTOR | 1 | $0 | $0 | $0 | $0 | 1 |
| CRAIG SAP | DIRECTOR | 1 | $0 | $0 | $0 | $0 | 1 |
2021 · 10 people listed · none paid · 0 employees · 16 volunteers
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| JULES HERSHFELD | TREASURER | 4 | $0 | $0 | $0 | $0 | 1 |
| NIDRA WINGER | PRESIDENT | 2 | $0 | $0 | $0 | $0 | 1 |
| JEFFERSON WAGNER | VICE PRESIDENT | 1 | $0 | $0 | $0 | $0 | 1 |
| MARTHA JUEDE | ARCHIVIST | 1 | $0 | $0 | $0 | $0 | 1 |
| CAROL JACKSON | SECRETARY | 1 | $0 | $0 | $0 | $0 | 1 |
| ROBBY MAZZA | DIRECTOR-CENTER MANAGER | 8 | $0 | $0 | $0 | $0 | 1 |
| JOHN MAZZA | DIRECTOR | 1 | $0 | $0 | $0 | $0 | 1 |
| ANN DONEEN | DIRECTOR-PUBLICIST | 1 | $0 | $0 | $0 | $0 | 1 |
| CHRISTINE CONWAY | DIRECTOR | 1 | $0 | $0 | $0 | $0 | 1 |
| TED VAILL | DIRECTOR | 1 | $0 | $0 | $0 | $0 | 1 |
2020 · 10 people listed · none paid · 0 employees · 35 volunteers
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| JULES HERSHFELD | FOUNDATION PRESIDENT | 4 | $0 | $0 | $0 | $0 | 1 |
| JEFFERSON WAGNER | FOUNATION VICE-PRESIDENT | 1 | $0 | $0 | $0 | $0 | 1 |
| NIDRA WINGER | FOUNDATON TRESURER | 4 | $0 | $0 | $0 | $0 | 1 |
| MARTHA JUEDE | ARCHIVIST | 4 | $0 | $0 | $0 | $0 | 1 |
| CAROL JACKSON | FOUNDATION SECRETARY | 1 | $0 | $0 | $0 | $0 | 1 |
| ROBBIE MAZZA | BOARD MEMBER | 2 | $0 | $0 | $0 | $0 | 1 |
| JOHN MAZZA | BOARD EMBER | 1 | $0 | $0 | $0 | $0 | 1 |
| ANN DONEEN | BOARD PUBLICIST | 1 | $0 | $0 | $0 | $0 | 1 |
| CHRISTINE CONWAY | BOARD MEMBER | 1 | $0 | $0 | $0 | $0 | 1 |
| TED VAILE | BOARD MEMBBER | 1 | $0 | $0 | $0 | $0 | 1 |
Highest-paid independent contractors
No independent contractors reported.
Who gave
Contributor names are not public for this form type.
Public charities filing Form 990 or 990-EZ report large donors on Schedule B, but the IRS withholds their names and addresses from public copies. Private foundations (990-PF) are different: their contributors are public.
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 990 | ||||||||
| $464,893 | $57,459 | $1,479,690 | $1,479,690 | $372,407 | $23,558 | $0 | 0 | 8 |
| 2023 · Form 990 | ||||||||
| $101,695 | $23,499 | $1,019,209 | $1,019,209 | $16,355 | $22,649 | $0 | 0 | 10 |
| 2022 · Form 990 | ||||||||
| $145,903 | $19,895 | $957,338 | $957,338 | $35,731 | $24,748 | $0 | 0 | 9 |
| 2021 · Form 990 | ||||||||
| $107,373 | $95,139 | $1,042,266 | $1,042,266 | $17,724 | $6,495 | $0 | 0 | 16 |
| 2020 · Form 990 | ||||||||
| $94,992 | $23,178 | $1,081,780 | $1,081,780 | $4,295 | $6,718 | $0 | 0 | 35 |
Funders of this organization
2 grantors reported grants to this organization, $9,000 in all, tax years 2014 to 2021. Exact: the grantor wrote this organization's EIN. Fuzzy: the grantor wrote only a name (foundations' 990-PF has no EIN field), matched to the same or a near-identical name in the same state; the name as filed is shown. From the latest return for each grantor and year, so amended returns aren't counted twice. CSV
| Grantor | Type | Match | Years given | Grants | Total | Latest year | Latest year's amount | Grants |
|---|---|---|---|---|---|---|---|---|
| THE DOVANA FOUNDATION INC | Private foundation | Fuzzy filed as “MALIBU ADAMSON HOUSE FOUNDATION” | 2017, 2019, 2021 | 3 | $8,000 | 2021 | $3,000 | show |
| THE K A ZANKEL FOUNDATION | Private foundation | Fuzzy filed as “MALIBU ADAMSON HOUSE FOUNDATION” | 2014 | 1 | $1,000 | 2014 | $1,000 | show |
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| FRIENDS OF BANNING PARK CORPORATION | CA | A54 | $499,226 | $431,621 | SECRETARY | $0 | Same NTEE code A54, revenue within 2x, same state |
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| MOULTON FAMILY FOUNDATION INC | CA | A54 | $726,964 | $534,627 | Exec Director | $99,005 | Same NTEE code A54, revenue within 2x, same state |
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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 990 · $57,459 spent · pay $0 · grants $0 · events $1,623
| Line | As described | Total | Program | Management | Fundraising | Share |
|---|---|---|---|---|---|---|
| Other (as described) | HOUSE RESTORATION AND R | $34,466 | $34,466 | - | - | 60.0% |
| Other (as described) | DOCENT ACTIVITIES | $6,566 | $5,944 | $622 | - | 11.4% |
| Other (as described) | ARCHIVAL AND STORAGE CO | $6,210 | $6,210 | - | - | 10.8% |
| Information technology | $2,650 | $2,650 | - | - | 4.6% | |
| Office expenses | $2,615 | $2,162 | $453 | - | 4.6% | |
| Conferences, conventions and meetings | $1,623 | $1,623 | - | - | 2.8% | |
| Other (as described) | TELEPHONE | $1,393 | - | $1,393 | - | 2.4% |
| Insurance | $816 | - | $816 | - | 1.4% | |
| Advertising and promotion | $700 | $700 | - | - | 1.2% | |
| Fees: accounting | $320 | - | $320 | - | 0.6% | |
| All other expenses | $100 | - | $100 | - | 0.2% | |
| Total | $57,459 | 100% |
2023 · Form 990 · $23,499 spent · pay $0 · grants $0 · events $1,866
| Line | As described | Total | Program | Management | Fundraising | Share |
|---|---|---|---|---|---|---|
| Other (as described) | ARCHIVAL AND STORAGE CO | $5,125 | $5,125 | - | - | 21.8% |
| Other (as described) | HOUSE RESTORATION AND R | $4,916 | $4,916 | - | - | 20.9% |
| Other (as described) | DOCENT ACTIVITIES | $4,632 | $4,401 | $231 | - | 19.7% |
| Office expenses | $2,705 | $1,514 | $1,191 | - | 11.5% | |
| Information technology | $2,043 | $2,043 | - | - | 8.7% | |
| Conferences, conventions and meetings | $1,866 | $1,866 | - | - | 7.9% | |
| Other (as described) | TELEPHONE | $1,180 | - | $1,180 | - | 5.0% |
| Insurance | $586 | - | $586 | - | 2.5% | |
| Fees: accounting | $346 | - | $346 | - | 1.5% | |
| All other expenses | $100 | - | $100 | - | 0.4% | |
| Total | $23,499 | 100% |
2022 · Form 990 · $19,895 spent · pay $0 · grants $0 · events $3,178
| Line | As described | Total | Program | Management | Fundraising | Share |
|---|---|---|---|---|---|---|
| Other (as described) | ARCHIVAL AND STORAGE CO | $8,538 | $8,538 | - | - | 42.9% |
| Office expenses | $3,499 | $3,499 | - | - | 17.6% | |
| Other (as described) | HOUSE RESTORATION AND R | $1,482 | $1,482 | - | - | 7.4% |
| Other (as described) | TELEPHONE | $1,332 | - | $1,332 | - | 6.7% |
| Other (as described) | DUES & SUBSCRIPTIONS | $1,320 | - | $1,320 | - | 6.6% |
| All other expenses | $1,272 | $1,272 | - | - | 6.4% | |
| Information technology | $862 | - | $862 | - | 4.3% | |
| Travel | $589 | $589 | - | - | 3.0% | |
| Insurance | $560 | - | $560 | - | 2.8% | |
| Fees: accounting | $291 | - | $291 | - | 1.5% | |
| Conferences, conventions and meetings | $150 | $150 | - | - | 0.8% | |
| Fundraising events Event | direct expenses; gross income $10,083 | $3,028 | reported apart | |||
| Total | $19,895 | 100% |
2021 · Form 990 · $95,139 spent · pay $0 · grants $0 · events $0
| Line | As described | Total | Program | Management | Fundraising | Share |
|---|---|---|---|---|---|---|
| Payments to affiliates | $80,500 | $80,500 | - | - | 84.6% | |
| Other (as described) | ARCHIVAL AND STORAGE CO | $7,876 | $7,876 | - | - | 8.3% |
| Office expenses | $1,840 | - | $1,840 | - | 1.9% | |
| Other (as described) | TELEPHONE | $1,193 | - | $1,193 | - | 1.3% |
| Fees: accounting | $990 | - | $990 | - | 1.0% | |
| Insurance | $717 | - | $717 | - | 0.8% | |
| Other (as described) | HOUSE RESTORATION AND R | $710 | $710 | - | - | 0.7% |
| Other (as described) | DOCENT ACTIVITIES | $665 | $665 | - | - | 0.7% |
| Information technology | $648 | - | $648 | - | 0.7% | |
| Total | $95,139 | 100% |
2020 · Form 990 · $23,178 spent · pay $0 · grants $0 · events $80
| Line | As described | Total | Program | Management | Fundraising | Share |
|---|---|---|---|---|---|---|
| Other (as described) | HOUSE RESTORATION AND REPAIR | $6,897 | $6,897 | $0 | $0 | 29.8% |
| Other (as described) | ARCHIVAL AND SUPPLY STORAGE COSTS | $6,699 | $6,699 | $0 | $0 | 28.9% |
| Other (as described) | COST OF SALES SUPPLIES | $2,419 | $2,419 | $0 | $0 | 10.4% |
| Insurance | $1,881 | $1,881 | $0 | $0 | 8.1% | |
| Office expenses | $1,477 | $1,477 | $0 | $0 | 6.4% | |
| Other (as described) | SALES TAX PAID TO CA STATE | $1,361 | $1,361 | $0 | $0 | 5.9% |
| Information technology | $1,047 | $1,047 | $0 | $0 | 4.5% | |
| Fees: accounting | $1,030 | $1,030 | $0 | $0 | 4.4% | |
| Fees: legal | $210 | $210 | $0 | $0 | 0.9% | |
| Conferences, conventions and meetings | $80 | $80 | $0 | $0 | 0.3% | |
| Travel | $77 | $77 | $0 | $0 | 0.3% | |
| Total | $23,178 | 100% |