Rinse liver, cover with boiling water and let stand 10 minutes; drain. Grind with salt pork and onion; add parsley, crumbs, eggs, salt and pepper, and mix thoroughly. Press into baking pan (8x4x3 inches) and bake in a 350 degree oven for about 1 hour or until browned. Remove loaf to hot platter. Stir flour into drippings and brown; add water gradually and cook 5 minutes until thickened; season and pour over loaf.