If you want to put the label on after its been quilted you can use a blind stitch so the stitches want show on the front.
I have time and plenty of pretty colors of thread I can sew it out and get it back in 4 day. It takes a little bit to set it up after that it run its self. And by doing it on a differnt piece of the fabric if there happens to be a problem it doesn't mess up the
quilt top. Bobbie
The way I like to do the label is put the names and the information. I then take a pieces of fabric that matches the back and sew strips all around the label It blends into the back.