With the outbreak of the Civil War in early 1861 , Gillmore was assigned to the staff of Brig. Gen. Thomas W. Sherman .
With the outbreak of the Civil War in early 1861 , Gillmore was accompanied him to Port Royal , South Carolina .
With the outbreak of the Civil War in early 1861 , Gillmore was assigned to the staff of Brig. Gen. Thomas W. Sherman and accompanied him to Port Royal , South Carolina .