Wikimedi'Òc

Batteries for Entrenchment at Harrisburg, Susquehanna Riv. South sie. (Panel of plans and sections.) - NARA - 305788.jpg - US National Archives bot

Harrisburg, radar image mosaic LOC 87695537.jpg - Fæ

Harrisburg, radar image mosaic LOC 87695537.tif - Fæ

Sketch showing Proposed defences of Harrisburg, Pa., and Conowingo Bridge, Md - NARA - 305787.jpg - US National Archives bot

Original Plan.pdf - TemplarSeth

Sketch of Defensive Works and Approaches at Harrisburg, Pa - NARA - 305786.jpg - US National Archives bot

View of Harrisburg, Penn. LOC 75694986.jpg - Fæ

View of Harrisburg, Penn. LOC 75694986.tif - Fæ

PA Harrisburg 1855 Map.jpg - ALH