Remember to include gift details, such as gift date and gift amount, in your acknowledgment letter to the donor. 3. This guide offers tips for writing acknowledgement letters to families for donations made in memory of a loved one.A memorial notification letter differs from a gift acknowledgment letter, so we've put together some sample language to help you craft a letter of this nature. Once you have filled out the worksheet, PEC will record the amount of the donation into your gift record and provide you with a letter of acknowledgment. Pay tribute to a loved one with a gift in honor or in memory of them while helping others in need. What do you need to include in your donation acknowledgment letter? Pay tribute to loved ones or make memorial donations. Make a donation in someone's name and Komen will mail a tribute card to them about the donation. Thank you for choosing to support Breakthrough T1D (formerly JDRF) to honor the memory of your loved one.