Complex sentence: He worked briefly as a history teacher at a Catholic boys high school in Bankstown, and was hired by David Elfick, then the local editor of the national weekly pop music magazine, "Go-Set" (later Elfick was a movie producer).
Split into simpler sentences: He worked briefly as a history teacher at a Catholic boys high school in Bankstown. He was hired by David Elfick, then the local editor of the national weekly pop music magazine, "Go-Set" (later Elfick was a movie producer).