Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      pound         dry navy beans -- (soak overnight)
   2      quarts        water
   1      pound         ham and bones
   1      teaspoon      salt
     1/2  teaspoon      pepper
     1/2  cup           chopped celery leaves
   1      medium        onion -- chopped
   1                    bay leaf -- (optional)

Preparation:

Put all ingredients in pot. Cook on low 10 to 12 hours.