. "Commissioner of Lighthouses" . . . . . . . . . . . . "Lighthouse Board" . . "National Lighthouse Service" . . . . . . . . . . "U.S. Lighthouse Service" . . . "United States Lighthouse Establishment" . "Superintendent of Lighthouses" . . . . . . "U.S. Lighthouse Service 1789-1939" . . . . . . . . . . . . . . . . . "Lighthouse Bureau" . "United States Lighthouse Service" . . . . . . . "1939" . . . . . . . . . . . . . . . . . . . . . . . . "Lighthouse Service" . . "United States Lighthouse Service" . . . "U.S. Lighthouse Service" . . . . . . "Light Service" . "U.S. Lighthouse Service flag" . . "1910" . . "Bureau of Lighthouses" . .