http://www.loc.gov/exhibits/treasures/trm027.htmlFacsimile of Thomas Jefferson's manuscript prescribing the arrangement of his personal library, later to form the nucleus of a Library of Congress classified according to his scheme.American Treasures of the Library of Congress: Memory (Thomas Jefferson to George Watterston). In Jefferson's day, most libraries were arranged alphabetically. But Jefferson preferred to arrange his by subject.
Attributed to Thomas Birch
James Madison appointed George Watterston as Librarian of Congress
in 1815--the first to hold the position full time. One of Watterston's
initial tasks was to receive the shipment of books newly purchased
from Thomas Jefferson. On April 26, 1815, Watterston wrote toamerican treasurelibrary of congressmemorythomas jeffersonwattersonmemoryreasonimaginationarrangement of booksLibrary and Information Science > Library History
Official guide to the development of its role as a national library, with descriptions of its buildings, a timeline of acquisitions and a list of Librarians of Congress.