Wolfeboro. Octagon house. Built in 1870. Located at the corner of Middle and Richards Streets. Two story.
Source: R. Kline.
Entered: September, 2002.

Fabyan. Octagon house. The summer home of Henry Ward Beecher.
Source: "More About Octagons," Carl Schmidt.
Entered: October, 2002.

Manchester. Octagon house. The Henry Lenz house. Located at 130 Mast Street.
Source: "More About Octagons," Carl Schmidt.
Entered: October, 2002.
Manchester. Octagon house. Built in the early 1870s. Located at 481 Hanover. Two, possibly three, story. Cupola. Brick construction. Possibly another octagon structure behind it. Single story, with a cupola.
Source: R. Kline.
Entered: September, 2002.
Manchester. Octagon house. The Richardson-Ela house. Built about 1855. Located at 585 Beach Street.
Source: R. Kline.
Entered: September, 2002.
Manchester. Octagon house. Built about 1853. Octagon house and octagon barn. Three octagonal houses are said to exist in Manchester, perhaps two with octagonal barns.
Sources: Stuart Lutz, octagonal house, and octagonal barn..

Entered: June, 2001.

Portsmouth. Octagon house. The Thomas Haven house. Now gone. Located at the corner of Middle and Richards Street.
Source: "More About Octagons," Carl Schmidt.
Entered: October, 2002

Great Falls. Octagon house. Built in or before 1877. Located at the intersection of Beacon Street and Prospect. Two story. Cupola. Shown at the center of a segment of an 1877 map of Great Falls.
Source: R. Kline
Entered: August, 2002
Great Falls. 10-sided buildings. Built in or before 1877. Located off Main Street, near the intersection of Water Street. Single story. Cupola. Part of the city gas works. Shown at the center of a segment of an 1877 map of Great Falls.
Source: R. Kline
Entered: August, 2002

Charlestown. Octagon house. Built in 1850 Located on Hemlock Road. Two story.
Source: Edgar Alan Nutt.
Entered: December, 2001.