Janet 'whaur are ye'?

Janet McRae is missing - is that even her real name! Janet is the mother of Robert Buchan who arrived in Australia in 1852. She is named on his marriage and death certificates in Australia, but I can not find her in Scotland. In May I will travel to Edinburgh to do 'local' research into the Buchans and Janet. This elusive ancestor of the Australian Buchans is relevant mostly to her descendants, but the strategy to 'find' her is the same as for any missing ancestor. The task will use DNA + Documentary records + TIME. I began this research in March 2022, during the Skills course of YourDNAGuide run by Diahan Southard. So it is already taking time. Because, to my knowledge, Janet's son Robert is her only child, the DNA for the research must come from Australian Buchans only. The story so far.... I believe that Janet McCray is the name listed as his mother on Robert Buchan’s marriage certificate of 1860, see image below. His father is listed as Robert Buchan. DNA a...