Josiah Cowles House was created in 1728.
Gen. George Cowles House was created in 1803.
W. T. Cowles House was created in 1897.
Josiah Beard House was created in 1844.
Josiah Bronson House was created in 1738.
Josiah Quincy House was created in 1770.
Josiah Dennis House was created in 1736.
Josiah Kirby House was created in 1890.
Josiah Bartlett House was created in 1774.
Josiah Frost House was created in 1819.
Josiah Mason Jr. House was created in 1831.
Cowles Bog was created in 1966.
Cowles Foundation was created in 1932.