Hi Shearg
This looks to be Robert and Margaret Pirie in 1851:
Robert Pirie 38, Blacksmith Employin 3 Lab, b. Old Deer, Abdnshr
Marget Pirie 25, b. Kintore, Abdnshr
Jane Pirie 4, b. Skene, Abdnshr
Alexander Pirie 2, b. Newhills
Isabella Pirie 7 Mo, b. Newhills
James Smith 36, servant Blacksmith And Ferrier
Duguid Aitken 13, house servant
Address: Bitt Side, Newhills, Aberdeenshire
Parents' marriage/banns from the Old Parish Registers:
ROBERT PIRIE Marriages: Spouse: MARGT. FYFE
Marriage: 14 DEC 1845 Skene, Aberdeen, Scotland
There is also a submitted entry for Robert's death of 1876, no location given.
Regards.
Monica
PS: Can't easily see the family in the 1861 Census - maybe they left between 1856-61 for Canada?