Hi, first time on this -  read your comments last week and have joined up today.
  I was thinking this Tole thing through and figured out last night that it was most likely a misinterpretation of Idle.  And then today here it was confirmed.  quite chuffed.
But anyway , we are descended through Samuel and his son George.  Can't tell you how many Marshalls are out there communicating and working on this stuff. 
I have only started in the last couple of weeks (didn't know about Samuel at all til then)  There are quite a lot of interesting articles on 
www.trove.nla.gov. au      about their time in Adelaide and also some on William in Sydney.  Samuel was an organ and piano manufacturer and had a music shop in Adelaide. Samuel and also son George also worked on the manufacture of the Ridley Wheat Stripper in South Australia. But you may know about that.