You want to leave money to MIHPF in your will and retain the flexibility to change your will in the event life circumstances change.  In as little as one sentence, you can complete your gift.
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“I give [___ percent of the residue of my estate] or [the sum of $_______] to the Mare Island Historic Park Foundation for its general purposes [or for the benefit of {the chapel, library, etc.}] Tax ID #68-0352022.”

You should seek the advice of your attorney or financial planner regarding other types of planned gifts, including charitable remainder or lead trusts or an IRA rollover.  If you include Mare Island Historic Park Foundation in your plans, please include our legal name and federal tax ID.  Please contact MIHPF if you are considering an in-kind bequest, such as a vehicle or real property.