Author
Dempsey, Patrick E. 1949-
1
Ehrenberg, Ralph E., 1937-
1
Flagg, Charles Allcott, 1870-1920
1
Hébert, John R.
1
Library of Congress. Geography and Map Division
1
Library of Congress. Geography and Map Division. Reference and Bibliography Section
1
Sanborn Map Company
1
United States. National Archives and Records Service
1