Canada Seafood Chowder

Name: Canada Seafood Chowder
Ingredients: 1 Tablespoon butter; 3 pieces Canadian bacon (chopped (optional)); 2 stalks celery (chopped); 1 onion (chopped); 1 bay leaf; 1 teaspoon thyme (dried or dill dried); Salt and Pepper to taste; 2 large potatoes (peeled and diced); 2 cups fish stock (or water); 1/3 cup all-purpose flour; 3 cups milk; 2 cups fish fillets (chopped or seafood blend, shrimp, lobster, scallops, crab, clams, oysters); 2 Tablespoons freshly squeezed lemon juice; 4 Whole grain crackers (crumbled)