http://www.familysearch.org/I have only browsed the family tree mainly on the Mormon site (above) but if you want to go further back I think you will find that the family arrived in Kent from Shropshire in the 17th century. The family base seems to have been around Wem (nr Shrewsbury). Some of them then moved to the Folkestone/Dover area of Kent and Ash Kent (about 10 miles away). They move around these areas for the next 2 centuries with (I think) ofshoots of the family in Thanet Kent, London and then the USA and later as you say Australia.
I havn't written this all down yet or I would send you a copy. Its fun if you try the Mormon site. People in Shropshire, around Dover, Folkestone, Margate, Canterbury or Ash Kent are probably your relations. The family has limited imagination where male names are concerned try William, Thomas and John and most of the family will appear (Richard and Henry are also quite popular). If you need any more help please ask as I may have figured that bit out - my problem is working out the 19C......
Best wishes
John