In Summer 1865 Poe became the Lighthouse Board's chief engineer; in 1870 he was promoted to the position of Chief Engineer of the Upper Great Lakes 11th Lighthouse District. In this capacity, he designed eight "Poe style lighthouses" and oversaw construction of several. Poe was named District Engineer for the Eleventh Lighthouse District, Those lights are New Presque Isle Light (1870) on Lake Huron, Lake Michigan's South Manitou Island Light (1872), Grosse Point Light (1873) in Evanston, Illinois, Lake Superior's Au Sable Light (1874), Racine, Wisconsin's Wind Point Light (1880); Outer Island Light (1874) in the Apostle Islands, Little Sable Point Light (1874) on Lake Michigan, Manistique, Michigan's Seul Choix Light (1895) and Spectacle Reef Light.