While exploring Isaac Hillier's descendants thanks to information given to me by May Margin, I discovered that Peter Garrett is a Hillier descendant. He descends from Isaac Hillier's daughter, Adelaide Maud Hillier.
Peter is the subject of an episode in the new series of "Who Do You Think You Are". I don't know which part of Peter's ancestry that the program will focus on. Let's hope it is the Hilliers!!
Sadly the program focused on his paternal line and his maternal grandmother only. The Hilliers missed out!
Peter Garrett