Letter from Gustavus Fox to Simpson, ALS June 1863

Unofficial letter dated June 22, 1863 from Secretary of the Navy Gustavus Fox to Lieutenant Commander Simpson regarding the appointment of John Dahlgren to Rear Admiral and Commander of the South Atlantic Blockading Squadron. Fox further indicates that Simpson would be assigned to the USS Passaic, and begin considering candidates for an executive officer. **Fine condition. Some minor folding creases and wear to corners and edges.** $200-$400