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Form 990-PFTax year 2023EIN 52-7106931

Mainwaring Archive Foundation

A private foundation in New York, NY. Its return for tax year 2023 lists 2 grants and $4,801 paid in grants.

See which foundations fund work like yours Matching by cause, place and grant size

Tax year 2023 (period ending Dec 31, 2023), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Preselected only

The return checks the box saying the foundation gives only to preselected organizations and does not accept unsolicited requests.

Assets and giving by year

4 returns on file
Grants paid by tax year. The latest year is in blue.

  • Tax year 2023

    $4,801

    Grants listed
    2
    Assets, end of year
    $0

  • Tax year 2022

    $5,000

    Grants listed
    1
    Assets, end of year
    $20,354

  • Tax year 2021

    $5,000

    Grants listed
    1
    Assets, end of year
    $42,992

  • Tax year 2020

    $0

    Grants listed
    0
    Assets, end of year
    $61,277

Grants paid in 2023

2 grants, largest first

As listed on the return.

  1. American Philosophical SocietyPhiladelphia, PA

    Charitable contribution

    $4,768
  2. American Philosophical SocietyPhiladelphia, PA

    Charitable contribution

    $33

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Arts and culture2 grants $4,801100% of the total

By State

Grants to organizations with a US address, latest year.

  1. Pennsylvania2 grants $4,801

Officers, directors and trustees

2 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Brown Brothers Harriman Trust CoTRUSTEE Hours 1Pay $29
  • Susan Mainwaring RobertsTRUSTEE Hours 1Pay $0

The return

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