The University of Delaware Library is a Federal Depository Library.
"A popular Government without popular information, or the means of acquiring it, is but as Prologue to a Farce or a Tragedy; or perhaps both. Knowledge will forever govern ignorance: And a people who mean to be their own Governors, must arm themselves with the power which knowledge gives."
– James Madison, "Letter to W. T. Barry" (August 4, 1822)
Statistical Abstract has long been the authoritative resource for statistics. This is the single most important source for starting a statistical search. Statistical Abstract collects data for all facets of social, economic, and political life and includes all federal sources, some commercial publishers, and some professional and trade organizations. Tables have notes about sources of the data which can lead to other statistics. Tables are available in .pdf and Excel (.xls) formats.
Beginning with the 2013 edition, it is available in database format.
Statistical Abstract of the United States (Online Edition) (ProQuest)
This book examines census information, such as instructions to enumerators. These instructions led to undercounting women and misrepresenting women's occupational status.