Found two others with variant first name spelling at Roscommon County.
Bryan Kenny, Ireland Census, 1911, at Corrigeenagowna (Tivannagh, Roscommon), Ireland.
Male, 42, single, Roman Catholic brother of Head of Household.
Norah Kenny, Head of Family 24, Delia Kenny sister 39, and Bryan brother 42. All in the household born at Co Roscommon.