Complex sentence: Francis Kirk (c.1807-1869) was one of a number of Enrolled Pensioner Guards (EPGs) who came to the Swan River Colony between 1850 and 1868, to guard and oversee the work of the prisoners transported to Western Australia.
Split into simpler sentences: Francis Kirk (c.1807-1869) was one of a number of Enrolled Pensioner Guards (EPGs) that came to the Swan River Colony between 1850 and 1868. Their role was to guard and oversee the work of the prisoners transported to Western Australia.