A street map of Harmon by G.W. Bromley & Co., from Atlas of Westchester County, N.Y. Pocket, desk and automobile edition. Volume II. Yonkers, Greenburg, Mt. Pleasant, Ossining, Cortlandt, New Castle, North Castle, Yorktown, Somers, Bedford, Poundridge, Lewisboro, and North Salem. 1914.
The entire book can be viewed at David Rumsey.
CROTON 