There is quite a lot on John Arnel, actually John ARNDELL on australianhistoryresearch.info He arrived free on the Marquis of Cornwallis in 1796. His father was Thomas ARNDELL who arrived on the First Fleet transport Friendship in 1788 as assistant surgeon. John stayed behind for his medical education arriving later. He was appointed assistant to the surgeon on Norfolk Island. He is thought to have drowned in the Hawkesbury in 1805 however he turns up later in England remarrying. ARNDELL Park just up the road from me is named after Thomas ARNDELL.