Lieutenant Ralph Clark travelled to Australia as part of the First Fleet which left England in 1787 and arrived in Australia 252 days later.
He kept journals, many of which survive and are today held as part of the Mitchell Collection in Sydney, certainly the years 1787-1792. Ralph Clark's journals were sold at Sothebys in 1914 by Frederick Adolphus Trevan, the last known male descendant of this branch of the Trevan family. He was descended from Betsy Alicia's youngest brother, John Archer Trevan, who became a Customs Officer and served at Port Isaac on the north east coast of Cornwall for many decades. Here is an old postcard view of the village. John Archer Trevan married well, into the Hambley family, and inheritted "The White House" from his wifes family. Here is a photo of the house and also an album showing what it looked like before it collapsed and after it was rebuilt in the 1970s. The property still stands today on the western side of the bay at Port Isaac.
They had one son, Ralph Stuart (Stewart) Clark, who was baptised at
Stoke Damerell on 3 Oct 1785
Ralph Stewart son of Ralph & Betsy Elicia Clark
According to Robert Hughes in his book "The Fatal Shore", Ralph had a daughter named Alicia by one of the prisoners, Mary Branham, on Norfolk Island in July 1791. Also Clark Island in Sydney Harbour is named after him. He tried to cultivate vegetables there after the prisoners stole them on the mainland. They swam outto the island to steal them, so the move was not totally successful!
Both Mary Ann and Jemima survived into adulthood and married.
Some of his letters survive too, including one to his brother-in-law Matthew who was living in St Teath.
From information in the "Trevan Family Name History" in New Zealand "Australian records document the transfer of the estates of Ralph Clark and son Ralph Stewart Clark to Mathew Trevan in January 1796."