Polson Munro James

George Polson married Mary Sutherland 4 Nov 1831 Reay,Caithness, Scotland. arrived in Australia in October 1852, with their 10 children. Cath,Alexandria,william,alexander,james,janet,isabella,john,mary,georgina. all born in Reay Caithness.
Cath married a william Munro 1854 Victoria australia.They had a girl called Christina Munro who married a william John James 1888. Looking for the Parents of william John James marriage certificate says Parents John James Mother Catherine ---moare? They settled in the Stawell area in Victoria australia. Is anyone researching into this family? Your help or ideas as to the parents of William James or tips on how to decipher the surname of the mother appreciated.

Thank you
Dide