They are on the Canadian 1871 census in Whycocomagh.
Allan age 55
Flora is my gg aunt. She arived from Scotland in 1841 with her mother Catherine, brothers Donald, Fergus, Niel, sisters Sarah, & Isabel. Allan and Flora lived in Roseburn on 193 acres.
Can give you other tips if you want - just give me your email.
Hope this helps.