William Heine,Ī Prussian topographical engineer who had been the official artist on Commodore Matthew Perry’s expedition to Japan.
Samuel Heintzelman, who was then responsible for defending the capital and would soon be named a commander in the Army of the Potomac. Issued on New Year’s Day 1862, it was the first large and detailed map of the area, drawn from existing sources as well as new surveys.Īmong the map’s contributors was Gen. The Union defeat at Bull Runĭerailed the effort for a time, but by the end of the year the Coast Survey and the Office of Topographical Engineers had produced an impressive map of northeastern Virginia. Winfield Scott to begin a comprehensive mapping effort in the summer of 1861. The capital’s vulnerability to the south was worsened by the scarcity of reliable maps, prompting Gen.
Rebels repeatedly challenged the Union pickets and effectively blockaded the Potomac River, which enabled them to smuggle mailĪnd other materials across the river from Maryland. Troublesome in southern Fairfax County, Va., not far from Mount Vernon and Alexandria. Though there was little organized fighting along the Union defenses around Washington, they were continuously harassed by Southern skirmishers through the latter half of 1861 and into 1862. Disunion follows the Civil War as it unfolded.
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