Hi Evelyn,
My mother's Family came from Ireland and settled down possibly in Haddington, I found them there and their marriage, but being farm people they moved around a lot, they were round East Lothian and ended up in Midlothian, again they moved a few times and ended at this location Liberton, Edinburgh.
I have tried to trace my ggrandmother who was a Buchan but thanks to one of our friends on this site she told me the name was Bohan or Bohannan, so variation in spellings can put you right off, we will find them I am sure.
When the Census was taken many did not fill it in, or were perhaps on the move at the time so again they would not be seen, ages as well can be wrong again putting us off, I believe that the Census taker in East Lothian made a right mess of it one time.
I have looked at the Midlothian side and there are loads of them, would you like me to send these off or would you rather I did not ?.
They could have went to the Borders to work have you thought of that, but we have to remember that Industry took off in Scotland around then, many of the younger ones may have gone to work in the big Mills, Lasswade was one of many, or factories of some kind or even emigrated.
Cheers.
Archie.