So far three goslings have made their way out of the nest. The Mother has stayed on her eggs longer that I've expected. The other 4 adults have been taking care of the three that are out of the nest. I suspect that one of the other geese has been laying eggs this whole time, so the hatch may be staggered.
As evidenced by this photo.
Also a surprise, none of the goslings appear to be solid white. Looks like two buff and one Grey.