Sprinkle 1 Tb of sugar over the warm water. Sprinkle yeast over this and let stand in warm place to double in size.
 ( approx. 10 min. )
Mix milk, remaining sugar, flour and yeast mixture in a plastic or glass container, about the size of a 5 quart ice cream bucket. 
Stir, using only a wooden spoon or paddle, 
( metal objects retard Herman’s natural growth. )
Cover loosely or place plate over top of container so Herman can breathe.
Herman doubles, even triples at times of vigorous rising. 
Place Herman in a warm place overnight. Next day refrigerate loosely covered and try to stir each day. 
On the 5th day, measure out 1 cup of Herman to bake with and measure out another cup to give to a friend as a gift.

To continue growing your Herman Sour Dough Starter

Feed the Herman you have left - 
1 cup  Flour
1 cup Milk
1/2 cup Sugar.
Stir well.
Keep in refrigerator in  the same container, loosely covered. Stir every day. On the 10th day, if you wish , measure out another cup of Herman to use. 
Feed Herman - 
2 cups Flour
2 cups Milk
1 cup Sugar.
After tenth day you can start using Herman almost daily or as desired. As long as you remember to feed him approx. every 5 days he will survive.
You can also freeze Herman at this stage.