Black and white photo of Castle Hill. Image shows building, trres, water, and dock. Reverse of photo printed: "PHOTOGRAPHY BY/HENRY CURTIS/12 BAY VIEW AVENUE/NEWPORT, R.I. VIKING 7-0942." Hand-written on back of photo: "Chalet, Castle Hill/built about 1876 as laboratory for Prof. Alexander Agassiz/closed about 1894 after Woods Hole took over its function./turned into a guest cottage - when? late 40s/Agassiz estate bought in 1939 by James T. O'Connell/used by J.T. O'Connell from 1945 until (h)is death in 1974 as his summer home/used by his sisters in 1974 and 1975 as a summer residence. Eileen O'Connell O'Reilly, February 14, 1976." At bottom right of reverse of photo: "FOR DUPLICATE/SPECIFY #2040-2."