This guide offers tips for writing acknowledgement letters to families for donations made in memory of a loved one. Immediate acknowledgement "Hey, we got your money.Thank you for choosing to support Breakthrough T1D (formerly JDRF) to honor the memory of your loved one. When you make a donation in honor of someone, it can take up to four weeks for your tribute notification letter to arrive in your gift recipient's mailbox. 1. HONORARY DONATION - we will send an acknowledgement card to the pet owner or designated person you are honoring, including your name as donor. 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.