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Compassion in action for pediatric oncology families across California. Support a family
Supporting pediatric oncology families

Bringing hope and joy to children battling cancer.

We surround families with practical help, heartfelt care, and a community that shows up when it matters most.

Foundation supporters gathered at a community fundraiserBuilt with loveSince 2014
Calvin smiling in orange sunglasses

Calvin's idea“Give toys to the kids. It will help make them happier.”

Our purpose

Small acts of kindness can make a world of difference

The Calvin Preston Foundation helps children with cancer and their families navigate difficult seasons with dignity, comfort, and hope.

Discover our story
Mary beside a portrait of Calvin at a foundation event
Founded from love

A seven-year-old's wish became a movement.

Meet Calvin
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Our goal is to support families affected by limited resources, with children battling cancer. Together with our community, we provide support and basic needs, groceries, toys, and gifts during the holidays.

Our mission

How we help

Support that meets families where they are.

Practical support, delivered with warmth and without unnecessary complexity.

Everyday necessities

Essential household and personal care items that help families manage everyday needs.

Groceries

Fresh groceries and everyday essentials help families stay nourished during treatment.

Inpatient support

Practical support for families while their child is receiving inpatient hospital care.

Give comfort

Your generosity becomes groceries, care, and moments of joy.

Make a donation
Give your time

Pack a care box. Support an event. Help a family feel seen.

Volunteer with us
Community in action

Where community creates change.

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Foundation supporters at a fundraiserFundraiser

Dates to be announced

Community Fundraiser

Gather, give, and help fund direct support for oncology families.

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Volunteers packing boxes of groceriesVolunteer

Seasonal programme

Family Care Package Day

Help assemble essentials and encouragement for referred families.

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Community members supporting the foundationHoliday

Annual programme

Holiday Toy Drive

Bring joy to children in treatment through gifts selected with care.

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Latest updates

Good things are happening.

Follow foundation programmes, volunteer opportunities, and new ways to help.

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Volunteers supporting families