In 1914, "sister" steamers Frank S. Buck and Lyman Stewart were both christened within six months of each other. Years later, both sank in central California waters near NOAA's Gulf of the Farallones National Marine Sanctuary. Though their demises happened 15 years apart, in an astonishing coincidence, the two ships sank in virtually the same location near San Francisco Bay. Their engines are still visible at low tide.
Original article: Sister Steamer Shipwrecks Surveyed