Re: HANNIGAN,Thomas; Dublin,IRL>MD,USA; c.1840 "Hannigan seems to be an unusual surname" On the contrary! In 1890 there were 30 births registered in Ireland as HANNIGAN. The birthrate was 1:44 so there were 1320 living at that time. The Baltimore passenger lists are indexed so you can search that resource easily on microfilm at the Family History Center. Ellen Ellen Naliboff <enaliboff@home.com>