I sketched out the names on a piece of paper (over and over again, to make it look just right), then traced the tree onto some muslin with a washable fabric pen.
Then, it was just a bunch of chain-stitches (and a handful of french knots to dot the i's). I stitched the names of children in dark green and grandchildren in light green.
After washing the fabric pen ink out, and ironing it, I framed it in an 8x10 frame. I really love the end result. And, the recipient of the gift loved it too, which makes me so happy!