In a large bowl, dissolve yeast in warm water. Add the milk, shortening, sugar, eggs, salt, cornmeal and 4 cups flour. Beat until smooth. Stir in enough remaining flour to form a soft dough.
Turn onto a floured surface; knead until smooth and elastic, about 6-8 minutes. Place in a greased bowl, turning once to grease top. Cover and let rise in a warm place until doubled, about 1 hour.
Punch dough down. Turn onto a lightly floured surface; divide into size pieces. Shape each into 6-in. oval loaf. Grease two baking sheets; sprinkle with cornmeal. Place three loaves 3 in. apart on each prepared pan. Cover and let rise until doubled, about 30 minutes.
With a sharp knife, make three shallow diagonal slashes across the top of each loaf. Bake at 400° for 15-20 minutes or until golden brown. Remove from pans to wire racks to cool.