Complex sentence: Hitchcock told his parents that he wanted to be an engineer, and on 25 July 1913, he left St Ignatius and enrolled in night classes at the London County Council School of Engineering and Navigation in Poplar.
Split into simpler sentences: Hitchcock told his parents that he wanted to be an engineer. On 25 July 1913, he left St Ignatius and enrolled in night classes at the London County Council School of Engineering and Navigation in Poplar.