Complex sentence: William Paxton (1818--1 September 1893) was a South Australian colonist who arrived in 1840, became one of the investors in the Burra copper mines and returned to England in July 1855, a wealthy man.
Split into simpler sentences: William Paxton (1818--1 September 1893) was a South Australian colonist arriving in 1840, and became one of the investors in the Burra copper mines. He returned to England in July 1855, a wealthy man.