The windows of the old mill in New Holland have been sealed with bricks. Though the windows are gone, it isn’t difficult for some residents of the small village on the eastern edge of Gainesville to remember the days when the open glass windows meant a gift was coming. More than half a century ago, fathers who worked at Pacolet Mill in New Holland would hang their heads out of the windows and whistle down to get their children’s attention as they walked home from school.