Lots of Nova Scotia information online from Vital Records, census, gravestone inscriptions, etc. and I've had a look through my usual sites but can't find anyone with the surname Dasher.
There is a Liverpool (in Queens County which adjoins Yarmouth County)- but perhaps nothing to do with 1891 census birthplace 'Liverpool'- once a centre for shipbuilding and maritime trade as was most of the south shore of N.S.