Nonprofit · EIN 33-0318784
WILMINGTON HISTORICAL SOCIETY
Tax-exempt (reinstated) · WILMINGTON, CA 90744
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| March 31, 2026 | 990-EZ | $70,447 | $59,021 | $11,426 | $25,894 | $0 | $25,894 |
Financial details: 990-EZ for the year ended March 31, 2026
Revenue
- Contributions, gifts and grants
- $70,132
- Membership dues
- $50
- Program service revenue
- $0
- Investment income
- $0
- Net income from fundraising events
- $125
- Net income from sales of inventory
- $140
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fees and payments to contractors
- $8,835
- Occupancy
- $37,601
- Printing, publications and postage
- $17
- Other expenses
- $12,568
- Program services (functional)
- $55,893
Balance sheet and other
- Total assets, start of year
- $14,468
- Total assets, end of year
- $25,894
- Total liabilities, end of year
- $0
- Net assets, end of year
- $25,894
- Cash, savings and investments
- $25,894
- Gross receipts
- $70,447
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990-EZ for the year ended March 31, 2026, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Laura Mohberg | Treasurer | 30 | $0 |
| Simie Seaman | President | 10 | $0 |
Address and contacts
- Address (IRS master file)
- 309 W OPP ST, WILMINGTON, CA 90744-3412
- In care of
- % LAURA MOHBERG
- Mailing address (990-N for 2024)
- 309 West Opp Street, Wilmington CA 90744
- Principal officer (990-N for 2024)
- Laura Mohberg, 11 Chandler Ranch Road, Rolling Hills Estates CA 90274
- Signed the 990-EZ
- Laura Mohberg, Treasurer
- Phone
- (310) 629-1995
California records
California keeps its own records of charities and corporations. Search them by EIN 33-0318784 or by the name WILMINGTON HISTORICAL SOCIETY.
- Attorney General, Registry of Charities and Fundraisers
- Registration status and filed reports (CT-TR-1, RRF-1)
- Secretary of State, bizfile Online
- Corporation status, entity number, agent for service
- Franchise Tax Board
- Entity status letter (state tax exemption, good standing)
Mission
We collect, archive, digitize, educate and make available to the public the local history of Wilmington California.
Program accomplishments
- Digitized and processed several collections. Raised funds and coordinated the Preservation the historical library we are located in (floors, pergola and tiled roof repaired/ refurbished/preserved). Had 10 trees removed according to the Zero tolerance mandate. Held several history talks to create awareness of the archives. Collaborated with The Port of Los Angeles and the Rotary for Fleetweek where we had our Roadshow presented at the Phineas Banning Museum. Collaborated with LA Conservancy, Etan Does LA. He promoted the historical library and has 20K followers.Expenses $55,893 · grants $70,447
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in March, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | March 31, 2026 | August 17, 2026 | 990-EZ on file |
| 2024 | March 31, 2025 | August 15, 2025 | 990-N on file |
| 2023 | March 31, 2024 | August 15, 2024 | 990-N on file |
IRS record
- EIN
- 33-0318784
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2019
- Accounting year ends
- March
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Arts, culture and humanities (A80)
- Assets (IRS master file)
- $25,894
- Income (IRS master file)
- $70,447
Revocation and reinstatement
- Exemption revoked
- August 15, 2017
- Posted by the IRS
- June 11, 2019
- Reinstated
- Effective April 15, 2019
From the IRS automatic revocation list: organizations that did not file a required return or e-Postcard for three consecutive years.
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-EZ | March 2026 | $70,447 | $59,021 | $25,894 | XML |
| 990-N for 2024 Officer: Laura Mohberg | March 31, 2025 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2023 Officer: LAURA MOHBERG | March 31, 2024 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2022 Officer: LAURA MOHBERG | March 31, 2023 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2020 Officer: Laura Mohberg | March 31, 2021 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2019 Officer: Laura Mohberg | March 31, 2020 | ≤ $50,000 receipts | – | – | e-Postcard |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 33-0318784).
Questions about WILMINGTON HISTORICAL SOCIETY
- What is the EIN of WILMINGTON HISTORICAL SOCIETY?
- The employer identification number (EIN) of WILMINGTON HISTORICAL SOCIETY is 33-0318784.
- Is WILMINGTON HISTORICAL SOCIETY tax-exempt?
- Yes. The IRS revoked its exemption on August 15, 2017 and reinstated it effective April 15, 2019.
- Are donations to WILMINGTON HISTORICAL SOCIETY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does WILMINGTON HISTORICAL SOCIETY file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of WILMINGTON HISTORICAL SOCIETY due?
- The return for tax year 2026 (the year ending March 31, 2027) is due August 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did WILMINGTON HISTORICAL SOCIETY last file with the IRS?
- The latest return in the IRS public files is the 990-EZ for the year ended March 2026.
- Who is the principal officer of WILMINGTON HISTORICAL SOCIETY?
- The 990-N for 2024 names Laura Mohberg.
- Who are the officers and directors of WILMINGTON HISTORICAL SOCIETY?
- The 990-EZ for the year ended March 31, 2026 lists 2 people; 0 received compensation from the organization.
- How much revenue does WILMINGTON HISTORICAL SOCIETY have?
- On its 990-EZ for the year ended March 31, 2026 it reported revenue of $70,447, expenses of $59,021 and total assets of $25,894 at year end.
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