Historic American newspapers selected and contributed by state partners in the National Digital Newspaper Program.

The James Madison Papers consist of approximately 12,000 items, spanning the period 1723-1859, captured in some 72,000 digital images.

The James Monroe Papers at the Manuscript Division of the Library of Congress consist of approximately 5,200 items dating from 1758 to 1839. Monroe (1758–1831) was the fifth president of the United States, and one of 23 presidents whose papers are at the Library of Congress. Monroe's papers document his presidency and also his prior careers as secretary of state, secretary of war, delegate to the United States Continental Congress, diplomat, and governor of Virginia.

The Louisiana Purchase is a landmark event in American history, one that had a lasting impact not only on the size of the United States, but also on its economic, cultural, and political makeup. Before President Thomas Jefferson's administration purchased the territory in 1803, parts or all of the territory had been under the control of various Native American nations. From the 16th century onwards the Spanish and later the French controlled the territory. This presentation focuses on the various documents from maps to newspapers to cultural artifact that help to describe the region of North America that stretched from as far east as Alabama into what is now the state of Montana. The 119 items presented here come from the various special and general collections of the Library of Congress.

The Printed Ephemera collection comprises 28,000 primary-source items dating from the seventeenth century to the present and encompasses key events and eras in American history.

The collections housed in The Rare Book and Special Collections Division amount to nearly 800,000 books, encompassing nearly all eras and subjects maintained in well over 100 separate collections.

The complete Thomas Jefferson Papers from the Manuscript Division at the Library of Congress consists of approximately 27,000 documents. Search on the word "Louisiana" to retrieve over one hundred documents in Jefferson's papers.