Lees of Nottingham England and Campbelltown Nsw

My ancestral line is Morris Anthony Lees, Arthur Oswald Lees, Leslie Oliver Smith Lees, William Wilson Lees...???
There are Scottish connections, and certainly Campbelltown links.
William Wilson Lees was born in Johnstone, Scotland 1845. His parents were James Lees and Agnes(s) Wilson. James was a Customs Officer.
Any insights would be appreciated.
Morris