Ft. Dearborn (military P.O.)
Chicago
Jefferson 1846
Norwood Park 1870
(Chicago Fire) 1871
Irving Park 1872
Maplewood 1872
Mont Clare 1873
Chicago Northwest Division 1874
Pacific 1877
Humboldt Park 1878 - 1889
Avondale 1880
Farwell 1881Orchard Place 1881
Mayfair 1882
Cragin 1882
Dunning 1883
Bandow 1884
Forest Glen 1884
Bowmanville 1884
Hermosa 1885
Simons 1886
(S.E. corner Jefferson Township annexed) 1887
(Jefferson Township annexed) 1889
Humboldt Park discontinued 1889
Bandow discontinued 1889
Edison Park 1890
Humboldt Park 1890
(World's Fair) 1893
Post Offices Reorganization, postal zones 1894
Many Stations discontinued: 1894
Maplewood
Pacific
Avondale
Mayfair
Forest Glen
Hermosa
Simons
Northwest Division renamed Station F 1894
Humboldt renamed Station G 1898
Station F renamed Carpenter St. 1900
1901 Postal Zones Map:
Winnemac
Jefferson
Norwood Park
Dunning
Irving Park
Logan Square
Montclare
Cragin
Wicker Park
Carpenter St.
Karlen, Harvey. Chicago's Crabgrass Communities. Collectors Club of Chicago. 1992.
Karlen, Harvey. Chicago's Mail. Collector's Club of Chicago. 2002.
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