Complex sentence: He also prepared some of the material for the life of his friend and associate, Richard Cobden, which was written by John Morley, later Lord Morley; and he did some journalistic work in the "Morning Star" and the "Evening Star".
Split into simpler sentences: He also prepared some of the material for the life of his friend and associate, Richard Cobden, which was written by John Morley, later Lord Morley. In the field of journalism he contributed to the "Morning Star" and the "Evening Star".