Tanya contacted me privately about a month ago, so she is still looking. She now has a tree here dated 2016. Colin Howe is Howe-5876 . The name Laidlaw may not be as common as Smith, but there are graziers of the name all over the Western District of Victoria, descended ultimately from Sir Walter Scott's family. Laidlaw is a recognized sept of the Scott clan. I am not related to them or to Tanya's family. The best bet seems to be to purchase the marriage certificate, as Jo suggests, or to search immigration records.