My grandmother has a big family tree portrait in her living room that she painted. She added an extra leaves for DH, my baby daughter and SD14. My grandmother showed it to us over dinner. SD asked her in a very nasty tone why is her name on the tree. My grandmother hugged her and and told her she is a granddaughter to her in her heart. SD rolled her eyes and didn't say another word about it. I don't know how you all would feel about your step kids being on your family tree but I thought that was very sweet of my grandmother. Of course DH made her say thank you so it wasn't sincere.