This guide offers tips for writing acknowledgement letters to families for donations made in memory of a loved one. Please take a moment to fill out the donation form below.You can support the kids of St. Jude in memory of a loved one. Make a donation or create a memorial fund today. Remember to include gift details, such as gift date and gift amount, in your acknowledgment letter to the donor. 3. Thank you for choosing to support Breakthrough T1D (formerly JDRF) to honor the memory of your loved one. This guide will cover everything from nonprofit memorial donation thank you letters to keeping track of memorial donations and how to notify families.