Complex sentence: Clarence M. "Jack" Leumane (died 23 February 1928) was an English-born actor, singer, songwriter and librettist, writer of the song "The Lambton Worm" in 1867.
Split into simpler sentences: Clarence M. "Jack" Leumane (died 23 February 1928) was an English-born actor, singer, songwriter and librettist. The was also a librettist and writer of the song "The Lambton Worm" in 1867.