William Dun came to Australia in 1820 with wife marie. My mother was a dun and she came down the Lieu Frederick Bedwell/Francis Dun line.Both William and Mariediedvdied in Ipswich Qld around 1874 and were buried in Ipsdwich cemetry.Henry Percy Dun would be the brother of my Great grandfather .The book written by Loftus Dun is "They Came as Strangers"
Regards R.Trueman