Seth Ledyard Phelps was an American naval officer, and in later life, a politician and diplomat. Phelps received his first commission in United States Navy as a midshipman aboard the famous USS Independence. He served patrolling the coast of West Africa guarding against slavers. During the Mexican–American War he served on gunboats, giving support to Winfield Scott's army, and later served in the Mediterranean and Caribbean squadrons.

Andrew Hull Foote was an American naval officer who was noted for his service in the American Civil War and also for his contributions to several naval reforms in the years prior to the war. When the war came, he was appointed to command of the Western Gunboat Flotilla, predecessor of the Mississippi River Squadron. In that position, he led the gunboats in the Battle of Fort Henry. For his services with the Western Gunboat Flotilla, Foote was among the first naval officers to be promoted to the then-new rank of rear admiral.