1. In a large bowl, dissolve yeast in warm water; set aside. In another bowl, stir boiling water and shortening until shortening is melted. Add honey; cool to 110°-115°. Add the oats, eggs, salt, shortening mixture and 3 cups flour to yeast mixture. Beat until smooth. Stir in enough remaining flour to form a soft dough.
2. 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.
3. Punch dough down. Turn onto a lightly floured surface; divide in half. Shape each portion into a loaf. Place in two greased 9-in. x 5-in. loaf pans. Prick tops with a fork. Brush with butter. Cover and let rise until doubled, about 40 minutes.
4. Bake at 350° for 30-35 minutes or until golden brown. Remove from pans to cool on wire racks. Yield: 2 loaves (16 slices each).