This guide offers tips for writing acknowledgement letters to families for donations made in memory of a loved one. When your gift is received, Preservation Houston will send a letter to the person you indicate notifying them of your thoughtful donation.What do you need to include in your donation acknowledgment letter? How do I make a donation in honor or in memory of someone? Complete the form below to make a gift to Houston Public Media in memory or honor of a loved one, friend or colleague. The Trees For Houston Tribute Program allows donors to commemorate a special occasion, honor a friend or loved one, or to make a memorial gift. This guide will cover everything from nonprofit memorial donation thank you letters to keeping track of memorial donations and how to notify families. Check out our donation acknowledgement letter selection for the very best in unique or custom, handmade pieces from our templates shops.