The Big Sandy Expedition was organized by a Union general who was also a United States what?
William &quot;Bull&quot; Nelson William "Bull" Nelson (September 27, 1824 – September 29, 1862) was a United States naval officer who became a Union general in the Civil War.
Joseph Cabell Breckinridge Sr. Joseph Cabell Breckinridge Sr. (1842–1920) was a Union Army officer from Kentucky during the American Civil War. In later life, he became a brigadier general in the U.S. Regular Army and Inspector General of the Army as well as a major general of volunteers in the Spanish–American War. His cousin, John C. Breckinridge, a Confederate major general and former Vice President of the United States and his two oldest brothers fought for the Confederacy, while he and another younger son of Robert Jefferson Breckinridge, a Presbyterian minister, politician, public office holder and abolitionist, fought for the Union.