I have been reading alot about Northern Ireland's censuses being destroyed. Is there any source of information detailing who lived with a family during a certain time period? I am looking for years from about 1840-1920. I have a bunch of families to check and don't know where to begin without a census. Also...are there records detailing travel or immigration from the UK to Northern Ireland? I have 2 families from Yorkshire that end up in Antrim and Down. How could I check when they arrived? Thanks for any help! I'm fairly new at this. Eireann