Columbia subject headings:
Lincoln, Abraham, 1809-1865--Assassination.
Surratt, John H. (John Harrison), 1844-1916.
Harvard subject headings:
Lincoln, Abraham, 1809-1865--Assassination.
Surratt, John H. (John Harrison), 1844-1916.
Surratt, John Harrison, 1844-1916.
Princeton subject headings: