The following symbols provide a description of sources as cited at the beginning of the first footnote to each item. In addition to the customary symbols for describing manuscripts, the editors have employed symbols or single words to identify other sources which have been cited repeatedly in the first footnote.

AD Autograph Document  
ADS Autograph Document Signed  
ADf Autograph Draft  
ADfS Autograph Draft Signed  
AE Autograph Endorsement  
AES Autograph Endorsement Signed  
AL Autograph Letter  
ALS Autograph Letter Signed
ALS copy Autograph Letter Signed, copied by Lincoln and preserved in his papers  
Copy Copy not by Lincoln  
D Document
DS Document Signed
Df Draft
DfS Draft Signed
ES Endorsement Signed  
F Facsimile - - following any of the preceding symbols  
LS Letter Signed
P Photostat - - following any of the preceding symbols
Angle New Letters and Papers of Lincoln. Compiled by Paul M. Angle. Boston and New York: Houghton Mifflin Company, 1930.
Herndon Herndon's Lincoln: The True Story of a Great Life. By William H. Herndon and Jesse W. Weik. 3 volumes. Chicago, New York, and San Francisco: Belford, Clarke & Company, [1889].  
Hertz Abraham Lincoln: A New Portrait. By Emanuel Hertz. 2 volumes. New York: Horace Liveright, Inc., 1931.
Lapsley The Writings of Abraham Lincoln. Edited by Arthur Brooks Lapsley. 8 volumes. New York: P. F. Collier and Son, 1905.  
NH Complete Works of Abraham Lincoln. Edited by John G. Nicolay and John Hay. 12 volumes. New York: Francis D. Tandy Company, 1905.
OR The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies. 4 series; 70 ``volumes''; 128 books. Washington: Government Printing Office, 1880-1901. Roman numerals are used for Series, Volume, and Part (if any); pages are in arabic.
Tarbell The Life of Abraham Lincoln. . . . By Ida M. Tarbell. 2 volumes. New York: The Doubleday & McClure Company, 1900.  
Tracy Uncollected Letters of Abraham Lincoln. Edited by Gilbert A. Tracy. Boston and New York: Houghton Mifflin Company, 1917.
Wilson Uncollected Works of Abraham Lincoln. Edited by Rufus Rockwell Wilson. 2 volumes. Elmira, New York: Primavera Press, 1947-1948.  


CCamStJ St. John's Seminary Library, Camarillo, Calif.  
CLCM Los Angeles County Museum Library, Los Angeles, Calif.
CSmH Henry E. Huntington Library, San Marino, Calif.  
CoHi State Historical Society of Colorado, Denver, Colo.
CoU University of Colorado Library, Boulder, Colo.  
Ct Connecticut State Library, Hartford, Conn.  
CtHi Connecticut Historical Society, Hartford, Conn.  
CtLHi Litchfield Historical Society, Litchfield, Conn.  
CtSoP Pequot Library, Southport, Conn.
CtWat Watertown Library Association, Watertown, Conn.
CtY Yale University Library, New Haven, Conn.  
DLC Library of Congress, Washington, D.C.  
DLC-HW Herndon-Weik Collection, Library of Congress  
DLC-RTL The Robert Todd Lincoln Collection of the Papers of Abraham Lincoln, Library of Congress
DLM Lincoln Museum, Ford's Theatre, National Park Service, Washington, D. C.  
DNA National Archives, Washington, D. C. All additional abbreviations and numbers given with this symbol are those employed by the National Archives at the time the manuscript was located.
DNM National Museum Library, Washington, D. C.
DeHi Historical Society of Delaware Library, Wilmington, Del.
DeWI Wilmington Institute Free Library, Wilmington, Del.
I-Ar Archives Division, Illinois State Library, Springfield, Ill.
IBloHi McLean County Historical Society, Bloomington, Ill.  
ICHi Chicago Historical Society, Chicago, Ill.
ICU University of Chicago Library, Chicago, Ill.
IDecJ James Millikin University Library, Decatur, Ill.
IFre Freeport Public Library, Freeport, Ill.
IHi Illinois State Historical Library, Springfield, Ill.
IJI Illinois College Library, Jacksonville, Ill.  
ISLA The Abraham Lincoln Association, Springfield, Ill.
IU University of Illinois Library, Urbana, Ill.
IaCrM Iowa Masonic Library, Cedar Rapids, Iowa
IaDaM Davenport Public Museum, Davenport, Iowa
IaHA Iowa State Department of History and Archives, Des Moines, Iowa  
In Indiana State Library, Indianapolis, Ind.  
InFtwL Lincoln National Life Foundation, Fort Wayne, Ind.
InHi Indiana Historical Society, Indianapolis, Ind.
InLTHi Tippecanoe County Historical Association, Lafayette, Ind.
InU Indiana University Library, Bloomington, Ind.
KyBC Berea College Library, Berea, Ky.  
KyU University of Kentucky Library, Lexington, Ky.
LU Louisiana State University Library, Baton Rouge, La.
MB Boston Public Library, Boston, Mass.  
MCon Free Public Library, Concord, Mass.  
MFai Millicent Library, Fairhaven, Mass.
MH Harvard University Library, Cambridge, Mass.
MHi Massachusetts Historical Society, Boston, Mass.  
MS Springfield Library Association, Springfield, Mass.
MSHi Connecticut Valley Historical Society, Springfield, Mass.
MdAA Hall of Records, State of Maryland, Annapolis, Md.
MdHi Maryland Historical Society, Baltimore, Md.
MeHI Maine Historical Society, Portland, Me.  
MiD Detroit Public Library, Detroit, Mich.
MiK-M Kalamazoo Public Library Museum, Kalamazoo, Mich.
MiU-C William L. Clements Library, University of Michigan, Ann Arbor, Mich.  
MiU-Hi Michigan Historical Collection, University of Michigan, Ann Arbor, Mich.
MnHi Minnesota Historical Society, St. Paul, Minn.
McSM Macalester College Library, St. Paul, Minn.
MoHi State Historical Society of Missouri, Columbia, Mo.
MoSHi Missouri Historical Society, St. Louis, Mo.
N New York State Library, Albany, N. Y.
NAuE Fred L. Emerson Foundation, Auburn, N. Y.
NBLiHi Long Island Historical Society, Brooklyn, N. Y.
NBuG Grosvenor Library, Buffalo, New York
NBuHi Buffalo Historical Society, Buffalo, N. Y.
NDry Southworth Library, Dryden, N. Y.
NHi New-York Historical Society, New York City
NIC Cornell University Library, Ithaca, N. Y.  
NN New York Public Library, New York City  
NNC Columbia University Library, New York City  
NNP Pierpont Morgan Library, New York City
NRU University of Rochester Library, Rochester, N. Y.  
NSh John Jermain Memorial Library, Sag Harbor, N. Y.
NSk Skaneateles Library Association, Skaneateles, N. Y.
NWM U. S. Military Academy Library, West Point, N. Y.
NbO Omaha Public Library, Omaha, Nebr.
NcGu Guilford College Library, Guilford, N. C.
NhExP Phillips Exeter Academy, Exeter, N. H.  
NjP Princeton University Library, Princeton, N. J.
OCHP Historical and Philosophical Society of Ohio, Cincinnati, Ohio
OClCS Case Institute of Technology, Cleveland, Ohio
OClWHi Western Reserve Historical Society, Cleveland. Ohio  
OFH Hayes Memorial Library, Fremont, Ohio
OMC Marietta College Library, Marietta, Ohio
ORB Oliver R. Barrett Collection, Chicago, Ill.*
OSHi Clark County Historical Society, Springfield, Ohio
OrHi Oregon Historical Society, Portland, Ore.
PHC Haverford College Library, Haverford, Pa.
PHi Historical Society of Pennsylvania, Philadelphia, Pa.
PMA Allegheny College Library, Meadville, Pa.
PP Free Library of Philadelphia, Philadelphia, Pa.
PPDrop Dropsie College Library, Philadelphia, Pa.
PSt Pennsylvania State College Library, State College, Pa.
PU University of Pennsylvania Library, Philadelphia, Pa.
RPAB Annmary Brown Memorial Library, Providence, R. I.
RPB Brown University Library, Providence, R. I.
THaroL Lincoln Memorial University, Harrogate, Tenn.  
THi Tennessee Historical Society, Nashville, Tenn.
ViU University of Virginia Library, Charlottesville, Va.
VtU University of Vermont Library, Burlington, Vt.
WBeloHi Beloit Historical Society, Beloit, Wis.  
WHi State Historical Society of Wisconsin, Madison, Wis.

West Virginia University Library, Morgantown, W. Va.

*After the Collected Works was in press, the collection of the late Oliver R. Barrett was sold at auction by Parke-Bernet Galleries (Catalog 1315) on February 19-20, 1952. It has been impossible to trace all new owners of the more than two hundred items, and impracticable to change the source citations for those which are known, but many of the more important items went to such well-known collections as those in the Library of Congress (Debates Scrapbook, purchased for the Alfred Whital Stern Collection) and Illinois State Historical Library (letters to Joshua F. Speed, etc.).                                                                                                                                 

Abraham Lincoln Association