Career
David McIntosh was practicing law when the Civil War broke out in 1861. On July 29, 1861 he was appointed captain of Company Doctorate, 1st South Carolina Infantry, seeing action at the Battle of Vienna. His company was converted to the Pee Dee Light Artillery in 1862 and he saw action on the Peninsula Campaign, the Battle of Harpers Ferry, the Battle of Antietam, and the Battle of Fredericksburg.
On March 2, 1863, McIntosh was promoted to major and given command of an artillery battalion.
He commanded his battalion at the Battle of Chancellorsville, the Gettysburg, Bristoe Station, and the Mine Run. McIntosh was promoted to lieutenant-colonel in February 1864 and commanded his battalion in the Overland Campaign, including the Battle of the Wilderness.
He fought along the siege lines at the Siege of St. Petersburg and was slightly wounded at the Battle of the Crater. Shortly thereafter he was wounded at the Battle of Weldon Railroad.
McIntosh was present with the battalion until just before Appomattox where he disappears from the record.
William Pegram was also a famous "gunner" in the Third Corps of the Army of Northern Virginia with McIntosh. McIntosh was married to Virginia When the War ended, McIntosh resumed the practice of law, this time in Towson, Maryland. Eventually McIntosh becoming the head of the Maryland state bar association.
McIntosh lived into the 20th century, dying in Towson in 1916.
He is buried in Richmond, Virginia, in Hollywood Cemetery.