Split Pea Soup

1/4 cup onion
3 sliced carrots
3 sliced celery stocks
1 cup diced potatoes
1 16 ounce bag split peas
1 ham hock
Cut up ham
6 to 8 cups water

Slight boil bater, add all ingredients, cook 45 minutes to an hour. Add 1/2 teaspoon thyme, salt and pepper. Add a little milk, and butter to taste as well. Serve.