Begin your note with a general thank you, and then refer specifically to what the person contributed after your loved one passed. Dear Uncle Tim, Thank you for helping to arrange transportation to and from the service. Your presence meant a great deal to us during this difficult time. Include a story or anecdote from the deceased’s life. Some of our best childhood memories are of when Mom used to take us to your house to bake Christmas cookies. She always spoke very kindly of you and and Aunt Mary, and we know she loved you very much. End your note by briefly thanking them again for their support. Thank you again for being there for us. It means the world. Sign the note with your own name or the names of family members. Love, Mark, Julie, and Andrew