Clam Chowder with thyme

1/4 cup butter 2 onions , finely chopped 1/4 cup flour 4 cups milk 3 medium potatoes , peeled & diced 1 teaspoon thyme 1/4 teaspoon salt (or more to taste)[...]

2 small onions , chopped 1 cup celery , chopped 2 tablespoons butter 1/4 cup butter 4 (6 ounce) cans minced clams (drained, save for broth) 4 (10 3/4 ounce)[...]

1 lb margarine 3/4 lb all-purpose flour 1 (23 ounce) can clam juice 1 (25 ounce) can clams , chopped 1 1/2 cups diced celery 1 1/2 cups diced onions 1 1/2[...]