Sorry for a very late reply. I have just started doing some research.
Hi Chezz I am William Cathcart Lamonts grandson, so I must be related to you. I am from Greenock and I remember his death in 1972. I have some History that you may not be aware of: William Cathcart Lamont had 4 sons, William, Joseph, Patrick and John and 2 daughters, Eleanor and Agnes, there were 8 grandchildren, 6 in the UK and 2 in Canada, (John and Joseph Lamont). He was in the Argyle and Sutherland Highlanders at Gallipoli and lost a leg in action. I was aware that there was an Australian connection, but was unsure of the detail, I have done a little research as I have been doing business across AUS and I though I might meet up with a long lost relative.
Anyway if you want more details, photographs etc, please contact.