Complex sentence: He was appointed Assistant Adjutant and Quartermaster-General for Cork District in 1880 and then, having served as Assistant-Adjutant and Quartermaster-General on the Staff, he was appointed Deputy Adjutant-General in Ireland in 1884.
Split into simpler sentences: He was appointed Assistant Adjutant and Quartermaster-General for Cork District in 1880. Having served as Assistant-Adjutant and Quartermaster-General on the Staff, he was appointed Deputy Adjutant-General in Ireland in 1884.