Engraved portrait of Brigadier General Egbert Ludovicus Viele by J.C. Buttre, with manuscript inscription describing his role in the transport of a detachment of the Seventh Regiment from New York City to Washington, D.C., April 1861., New-York Historical Society
Manuscript map of entrenchments constructed by the Seventh Regiment at Fort Runyon in Alexandria, Virginia, dated May 25, 1861., New-York Historical Society
Newspaper illustration of the Marshall House in Alexandria, Virginia, site of the death of Colonel Elmer E. Ellsworth during the American Civil War., New-York Historical Society