Oh boy, are you in trubble! Marron and Duffy are two VERY common names in the Carrickimacross area (Magheross Parish) I'm pretty sure that's the case in most of the county. Have you obtained all the vital statistics that are available? What part of Co. Monaghan was their home? The church records should be searched if you haven't already done so. St. Joseph's (in Carrick) records have been filmed. LDS film #0956055 I've no idea what you've done or haven't done. If you've contacted Theo. McMahon in Monaghan Town, you probably have all the info that's available. He's a good 'pointer'. Can tell you where all the records and info can be found. jean