Photograph of fog signal equipment (gasoline air compressors) inside Split Rock Lighthouse. Date unknown.

Photograph of Split Rock Station c.1930.

Photograph of first assistant (and eventual head light keeper) Franklin J. Covell standing next to the Split Rock Lighthouse lens c.1920.

Photograph of Split Rock Light Station and a tram car, c.1916.

United States Light House Service uniform hat worn by Orren Young, the first head light keeper at Split Rock Light Station. Young wore the hat between 1910 and 1928.

Photograph of Split Rock Lighthouse being built c.1909.

Sectional diagram of the Split Rock tower. Created no earlier than 1907 and no later than 1969.

Split Rock Lighthouse Station. Photographed by Dennis Adams of the Federal Highway Administration c.2000.

John Beargrease and his family, c.1895. Image courtesy the Cook County Historical Society.