I can't see the image of the 1841 Scotland census, does it show the relationships of the household? I ask because I know that the England and Wales ones do not. It's possible that the relationships are not what they seem. Samuel might not be the father or married to Jean, and/or the younger members of the household might not all be daughters, they could be other relatives that have come to Scotland for work. Also does it show if the people are married?
I know this seems unlikely after looking at the 1851 census but again, I can't see the image only the transcriptions.
Daisy