The District of Columbia Emancipation Act

"On April 16, 1862, President Abraham Lincoln signed a bill ending slavery in the District of Columbia. Passage of this act came 9 months before President Lincoln issued his Emancipation Proclamation. The act brought to conclusion decades of agitation aimed at ending what antislavery advocates called "the national shame" of slavery in the nation's capital...":
District of Columbia 

Police Blotter Listing the Assassination of President Lincoln, 04/14/1865

"On April 14, 1865, as he sat in Ford's Theater watching a comedy, President Lincoln was assassinated. The District of Columbia Metropolitan Police blotter lists the assassination among the more mundane police business of April 14, 1865. The entry begins: "At this hour the melancholy intelligence of the assassination of Mr. Lincoln, President of the U.S, at Fords Theater was brought to this office, and information obtained from the following persons goes to show that the assassin is a man named J. Wilks [sic] Booth...".."
President Lincoln Assassination

Abraham Lincoln Papers at the Library of Congress

"The papers of Abraham Lincoln (1809-1865), lawyer, representative from Illinois, and sixteenth president of the United States, contain approximately 40,550 documents dating from 1774 to 1948, although most of the collection spans from the 1850s through Lincoln’s presidency (1861-1865).  Roughly half of the collection, more than 20,000 documents, comprising 62,000 images, as well as transcriptions of approximately 10,000 documents, is online. Included on this website in their entirety are Series 1-3 of the Lincoln Papers and the original materials in Series 4. Excluded from this online presentation is a sizeable portion of Series 4, which consists of printed material and reproductions of government and military documents made from originals in the holdings of the National Archives and Records Administration...


The Index to the Abraham Lincoln Papers (PDF and page view) created by the Manuscript Division in 1960 after the bulk of the collection was microfilmed, provides a full list of the correspondents and notes the series number, dates, and mounting-sheet numbers for items in Series 1-3 of the Abraham Lincoln Papers. This information, in addition to the keyword search capability in the online presentation, is helpful in finding individual letters or documents in the online version. Additional letters received by the Library after 1960 are not listed in this index.

A current finding aid (PDF and HTML) to the Abraham Lincoln Papers is also available online..."
Abraham Lincoln papers