Preheat oven to 350 degrees Fahrenheit.
Over medium heat melt 1 tbsp. butter in pan then add onion and celery and sauté for 4 min.
Add garlic and sauté for additional minute before removing pan from heat.
Melt remaining butter in new pan and add all seasonings, lemon and herbs.
In a large bowl mix both breads, sautéed vegetables, butter mixture, and oysters plus reserved liquor. Once this has been mixed add stock.
Put mixture in a rectangular oven safe pan and cook at 350 degrees for approximately 30 to 40 minutes or until mixture is appears lightly browned on top and visible sides.