Another in the 'Look What We Found' broadcasts, for grades 4 through 8. This week, well look what we found... A lighthouse keeper! The show starts from high in the air - from the top of Split Rock Lighthouse, one of the highest lighthouses in America. Looking out over miles of churning blue water at the north shore of Lake Superior, Silver Bay, in Minnesota, we interview Robert E. Bennetts, who served as the lighthouse keeper of the Split Rock Lighthouse from 1947 to 1961.