Source is exactly "<a href="http://ead.lib.virginia.edu/vivaxtf/view?docId=vt/viblbv01265.xml">Alexandria and Fairfax Counties [Virginia] Civil War Correspondence</a>"
Letter from a soldier named Jonathan (the last name is illegible) to "Sallie," about her desire to visit him, the poor health of soldiers in his regiment, and their impending advance to Washington, DC.