US Senate Bean Soup

From the Joy of Cooking. 'This soup has been on the US Senate restaurant menu since 1901.'

Rinse & soak
1 1/4c small dried white beans, such as pea or navy

Drain and place in a soup pot along with:
7c cold water
1 small ham hock

Bring to a boil, reduce heat, and simmer until the beans are tender, about 1 1/4 hrs. Remove the ham hock. Discard the bone, skin, and fat; dice the meat. Return it to the pot along with:
1 large, diced onion
3 medium celery stalks with leaves, chopped
1 large potato, peeled and finely diced
2 cloves garlic, minced
1 1/2t salt
1/2t ground black pepper

Simmer until the potatoes are quite soft, 20-30 min. Remove from the heat and mask with a potato masher until the soup is a bit creamy. Stir in:
2T chopped fresh parsley

Ladle into warmed bowls and serve! Makes about 6c.