1930
Waugh, Coulton
1932
Gaffney, Walter M.
1:210k
1931
Tripp, B. Ashburton, 1887-1955
1:152k
1937
Holliday, C.W.
1:150k
1885
HIGGINSON, Thomas Wentworth.
1831
Lincoln & Edmunds
1915
United States Geological Survey
1:250k
1835
Hitchcock, Edward.
1874
HITCHCOCK, Charles Henry.
1896
Ellis, Edward Sylvester