Complex sentence: He befriended Guy Aldred, the "Boy Preacher" in Holloway, in 1903, a friendship that would last through conversation and correspondence for the rest of Voysey's life.
Split into simpler sentences: He befriended Guy Aldred, the "Boy Preacher" in Holloway, in 1903. Their friendship would last through conversation and correspondence for the rest of Voysey's life.