Complex sentence: During the years 1823-1826 he went through the prescribed course at the divinity hall, then presided over by Dr Stevenson MacGill, and on leaving, accompanied a pupil as private tutor to Eton, where he stayed two years.
Split into simpler sentences: During the years 1823-1826 he went through the prescribed course at the divinity hall, then presided over by Dr Stevenson MacGill. On leaving, accompanied a pupil as private tutor to Eton, where he stayed two years.