Complex sentence: In July 1862, De Lagnel was appointed lieutenant colonel of ordnance and served as second in command of the Confederate Ordnance Bureau under Brigadier General Josiah Gorgas.
Split into simpler sentences: In July 1862, De Lagnel was appointed lieutenant colonel of ordnance. He served as second in command of the Confederate Ordnance Bureau under Brigadier General Josiah Gorgas.