The Orkney Robert Allan is not the one I am looking for as I found the following
Robert Grant Watt Allan
birth: 19 Jun 1832
residence: 1832 —Orkney, Scotland
parents: John Allan, Betty Thomson (betty would be Elizabeth)
I now have the following possibilities
Parents Born Birth Resident(1851)
Robert Allan John,Margaret 1833 Brechou,Forfar Cy Dundee, Angus
Robert Allan John,Hellen 1832 Cumbernauld, Dumbartonshire Cumbernauld, Dumbartonshire
Robert Allan John, Mary 1834 Cumbraes, Buteshire Largs,Ayrshire
Robert Allan John, Marion 1834 Airdrie, Lanark New Monkland,Lanarkshire
Robert Allan John, Ann 1835 Dornoch, Sutherland Tarbat,Ross and Cromarty
Robert Allan John, Mary 1835 Hamilton, Lanark Hamilton,Lanarkshire