Statistics for occurrence #1 of “Rear-Admiral Dahlgren” in chapter 37 of Admiral David D. Porter, The Naval History of the Civil War.:

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Rear-Admiral Dahlgren succeeds Rear-Admiral Dupont. Dahlgren's difficult task. General Gillmore requests naval co-operation. Charleston harbor. plan of General Gillmore. attack on enemy's works by Army and Navy. cap...
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