Collins from Carnmore

James (Seamus) Collins and his mother Jane McNerney Collins left Ireland around 1852 for America. We THINK Jane's husband was Walter Collins. James was 21. Jame's sister Hannah Collins Haley/Hailey and her husband Thomas also came with them. We are not certain whether James had brothers but there MIGHT have been a Thomas and William. We are pretty sure the Collins' were from Carnmare, Claregalway, Co. Galway.  James married a Catherin Daley/Dailey from County Mayo but we don't know wheteht that was in Ireland or America. She was not listed on the ships manifest with James. I'd appreciate any help. Thanks, Paul Michael Patrick Collins, Cincinnati, Ohio, USA