ST LOUIS
Green's St Louis Directory 1845
Edwards's great West and her commercial metropolis: 1860
St Louis City Guide and City Directory 1868
OMAHA NEBRASKA
Collin's Omaha City Directory 1866
BOSTON MASSACHUSETTS
Boston Directory 1852
Boston City Directory 1855
Massachusetts Registry 1856
Sketches of Boston City Directory 1860-1861
NEW YORK
Doggett's New York City 1845
The New York Mercantile Union Business Direcotry 1850 - 1851
PENNSYLVANIA
McElroy's Philadelphia city directory 1855
OHIO
Williams Cincinnati 1853
Cincinnati Sketches and Statistics 1859
Williams Cincinnati Directory 1856
Sandusky City [Ohio] Directory 1855 by Root
Boston City Directory 1855
OMAHA NEBRASKA
Collin's Omaha City Directory 1866
BOSTON MASSACHUSETTS
Boston Directory 1852
Boston City Directory 1855
Massachusetts Registry 1856
Sketches of Boston City Directory 1860-1861
NEW YORK
Doggett's New York City 1845
The New York Mercantile Union Business Direcotry 1850 - 1851
PENNSYLVANIA
McElroy's Philadelphia city directory 1855
OHIO
Williams Cincinnati 1853
Cincinnati Sketches and Statistics 1859
Williams Cincinnati Directory 1856
Sandusky City [Ohio] Directory 1855 by Root
Boston City Directory 1855
Reference Guides
Other interesting sites
Complete Abraham Lincoln Papers at the Library of Congress
National Park Service now has online courses for Interpretive Development
Bill for Organizing Nebraska Territory (HR 353) on February 2, 1853.
The War of the Rebellion: a compilation of the official records of the Union and Confederate armies
Search - Smithsonian's museums, archives & libraries-
Archive Collections
Mercantile Library