A few possible records you would need to check originals on SP.
John Banks born 1870
Canisbay, Caithness
John Banks & Marjory Murray
1871 Grocers Shop, Canisbay, Caithness
Christina Banks 61 Head
Joan Banks 28 Son
Marjory Banks 29 Daughter-in-law
John Banks 3 Mo Grandson
Roderick M Banks 20 Son
Helen S Manson 11 Great Grandchild (Grandchild)
Jafan B Manson 7 Great Grandchild (Grandchild)
Jane Munro born 1870
Canisbay, Caithness
Duncan Munro & Christina Hain
1871 Grocers Shop, Canisbay, Caithness
Duncan Munro 34 Head Fisherman
Christina Munro 35 Wife
Jane Munro 14 Mo Daughter
1851/1861 census returns transcribed as HAM,
HAM CHRISTINA Canisbay Caithness
Colin