Complex sentence: Two who taught at the Boys' School were a Mr Bassett who stayed for 33 years from 1872 remembered for his lantern slide lectures and for giving an orange to each boy at Xmas, followed in 1905 by Mr Bowditch, with his mother as assistant teacher.
Split into simpler sentences: Two who taught at the Boys' School were a Mr Bassett who stayed for 33 years from 1872 and was remembered for his lantern slide lectures and for giving an orange to each boy at Xmas. He was followed in 1905 by Mr Bowditch, with his mother as assistant teacher.