Harmon Map and Plan of Lots, 1907 The article presents two historical maps showing the Harmon area from 1907, with both front and back views. A commenter named Charles Heckman observed: "Interesting that Sing Sing is not indicated on Harmon's map. Rather it is Homes of the Millionaires." This suggests the 1907 maps labeled the area as a residential destination for wealthy individuals rather than …