The quilt is lovely, and I think adding a picture of her beloved "fur" baby would be a special touch. My heart goes out to that little girl and the pain she must be going through now. I don't think I would add dates, just the picture with perhaps your name with love or some such sentiment. Double check with her mother, as she would know best what would be appropriate. Again, my heart goes out to that little girl, it's always so hard to lose a beloved pet.