Complex sentence: James Keith "Jimmy" Marshall (April 17,1839-July 3,1863) was a Confederate Army officer during the American Civil War who commanded J. Johnston Pettigrew's Brigade during Pickett's Charge during the Battle of Gettysburg.
Split into simpler sentences: James Keith "Jimmy" Marshall (April 17,1839-July 3,1863) was a Confederate Army officer during the American Civil War. Marshall commanded J. Johnston Pettigrew's Brigade during Pickett's Charge at the Battle of Gettysburg.