The robert was son of Henry Ennet + Elizth Cowin who had a large family in Lonan in 1841 but can only find dau cath in 1851 (the name ennet is usually misread!)
I suspect but have no proof that Henry is son of Peter Ennet/Annet + sarah cowley - one of whose daus is noted as associated with a brothel in strand st douglas see Manx Liberal 26 oct 1844