Hood Cockburn Cossar Family Connections from Duns Berwickshire Scotland

I am seeking information about Jean Hood married to Alan Cossar.
is this couple still alive or passed on? They are from Victoria Australia I think.
I would also like to know who they are descended from.
Our Cossar family from Dunse Berwickshire are from a line of Walter Cossars...
we have the family research on file if anyone is interested.
Thankx
Lizcos