I just checked to see if any of my 17 O'Loughlin children had a Larkin or a Moran as godparents and no luck. Two of the records are not baptismal so I couldn't be sure about those but so far I've not seen either name in connection with my O'Loughlins. I checked the three obituaries I have for the US O'Loughlins and still nothing. Sorry I couldn't be of help. Good luck.