Smoked Salmon Chowder without margarine

1 (16 ounce) smoked salmon fillets 4 tablespoons butter 1 cup coarsely chopped onion 1/2 cup coarsely chopped celery 1 cup coarsely chopped green pepper 4[...]

1/4 lb salt pork (ground) 2 medium onions , peeled and medium dice 3 carrots , peeled and medium dice 3 stalks celery , medium dice 2 cups chicken stock 2[...]