Wash cranberries; put them through a food chopper, using the coarse blade. Add the orange rind and sugar. Let stand.
Soften the yeast in the warm water. Set aside.
Add the cornmeal to the boiling water. Cook for 3 minutes, or until thickened. Remove from heat and add the salt, shortening and molasses. Mix well. Cool to lukewarm.
Stir in the softened yeast and the cranberries. Add 5 cups of the flour and mix well. Knead in the remaining flour on a pastry board.
Continue kneading until dough is smooth and satiny. Place the dough in a greased bowl, turning to grease dough on all sides. Cover and let rise in a warm place for 1 hour, or until doubled in bulk.
Punch down dough, cover and let rest for 10 minutes. Shape the dough into 2 loaves. Place in 2 greased 9 x 5 x 3-inch loaf pans. Cover and let rise again in a warm place for about 45 minutes, until dough has doubled in bulk.
Preheat the oven to 375°F.
Brush the tops of the loaves with the milk. Bake for 45 minutes, or until done.