This guide offers tips for writing acknowledgement letters to families for donations made in memory of a loved one. What do you need to include in your donation acknowledgment letter?Check out our donation acknowledgement letter selection for the very best in unique or custom, handmade pieces from our templates shops. Pay tribute to a loved one with a gift in honor or in memory of them while helping others in need. IMPORTANT: Please also fill out this form if you are donating online and would like us to send an acknowledgement to family or friends. Thank you for choosing to support Breakthrough T1D (formerly JDRF) to honor the memory of your loved one.