Please, before you are exhausted, David, how about McSheffery/rey/ry or Gault? I don't understand all the Irish research, but I know the families were in Coleraine, Macosquin, Articlave. Coleraine is the Barony ?? Macosquin and Articlave , the Civil Parishes ??? McSheffery/rey/ry is not a common Irish surname. Any hint of them being there ?? My gr. father was born in Coleraine in 1859, so hopefully we can track his family earlier in county Londonderry. Thank you so much ! Lois W.