Listed as R. Dickson in 1851/1852 census, a farmer from Ireland, age 48. If this is correct, then, in addition to Ann “Nancy”, they also have a 22 year old daughter M.J., 21 year old son R., 18 year old daughter E., 14 year old daughter, C., 13 year old son L, 11 year old son S., and the 2 Forsythe kids (G. (George)) and J. (age 1).
The 1861 census in Huntley has Nancy Dickson (age 61) and Catherine Dickson (age 25, likely the ‘C.’ daughter mentioned above) living with Charles Boyle and his wife Ann (nee Dickson).
There are other Dickson families in the area as well, also from Ireland.