Don't know if any of you would have been able to see BBC's "Who do you think you are?" that was screened here in UK last night. It featured Jason Donovan and went back to William Cox (died 1837) who was responsible for building the first road across the Blue Mountains. I can remember my Mum saying about her (??grandmother?? --- can't remember exactly) who was the first lady to cross the Blue Mountains in a covered wagon.
Hope this inspires your searches!
Glynne