Dissolve yeast in one cup of lukewarm water with 1 teaspoon sugar.
In a medium bowl combine remaining 1 cup water with molasses, shortening and salt.
Add remaining sugar and the yeast mixture. Mix until smooth.
Gradually add flour. Mix well.
Place dough on a light floured surface. Knead until smooth and elastic, about 12 minutes.
Place dough in a greased bowl. Turn dough over to grease the other side. Cover and let rise until doubled in size, about 1 hour.
Remove dough from bowl and divide into 3 portions. Shape each portion into a ball.
Place all 3 balls side by side in a baking pan.
Brush top lightly with melted butter. Let rise until doubled, about 1 hour.
Preheat oven to 375°F.
Place bread in oven, on the lowest rack in the oven, and bake for 45 minutes or until the golden brown.
Remove bread from the pan.
Brush top with additional melted margarine. Sprinkle with quick oats.
Place back in oven for 15 minutes.
Remove and place on wire racks to cool.