Hi, firstly thank you to everyone that has provided info in this thread.
I am a Sedunary living in Adelaide Australia, and have done a small amount of research into the tree back to arrival to Glenelg in the 1850s, and my understanding is that current Australian Sedunary's are descended from those that made that trip on the Lord of the Isles.
I will have another check of the names I have as some of those mentioned here sound familiar etc.
But maybe someone can shed some light on the origins of the name?
Cheers ,
C Sedunary