"Compiled from a map made 1884 by W.C. Simmons, jr. under direction of G.H. Elliot,. Lt. Col. of Engrs. U.S.A and from U.S.C.S Charts. Reduced and drawn in office of Captain W.H. Bixby, Engrs. U.S.A. by P. Brosig, 1893."
Inset map: Vicinity of Hyannis Harbor.