Roast Chicken with Corn Bread and Oyster Stuffing

Name: Roast Chicken with Corn Bread and Oyster Stuffing
Cuisine: American
Ingredients: ¼ pound unsalted butter; 1 small yellow onion, finely chopped; 2 celery ribs, finely chopped; 2 cups crumbled Corn Bread (see recipe, omitting the vegetables); 2 cups crumbled Corn Bread (see recipe, omitting the vegetables); 1 teaspoon finely chopped fresh sage; ½ teaspoon chopped fresh thyme; ½ teaspoon chopped fresh rosemary; ¼ cup heavy cream; 1 dozen oysters, shucked and drained with about ½ cup oyster liquor reserved; 1 dozen oysters, shucked and drained with about ½ cup oyster liquor reserved; 1 egg; Salt and freshly milled black pepper; Salt and freshly milled black pepper; 2 whole chickens (each about 3½ pounds)