An excellent work on emigration, again from Tim Pat Coogan, is Wherever Green is Worn.
The novels and autobiographical works of writers such as Donal McCauley and Patrick McGill have much information of what happened in post famine days.
I picked up a fascinating book of personal interest entitled 'Autobiography of a Liverpool Irish Slummy'
The famine emigrations must be particularly difficult to trace because of the manner in which they left and the great number involved - the bombardment of the Four Courts records office during the Irish Civil War didn't help.
My own family left Ireland during the famine, some of the men became merchant seamen - one of them drowned in New York Harbour after getting drunk and 'trying to walk ashore' for a visit.
My Great, great grandfather took the course many emigrants did and joined the British Army - his postings abroad make it difficult to trace that particular thread, as a cousin has recently discovered.
Perhaps a compiling of personal Family Trees might help fill out some details.
One of the most interesting pieces of research (not connected with the famine) I have ever come across was pointed out to me by my late friend Tom Munnelly, who stumbled across it on the 'net'.
Is was by an Australian woman, Sheila Downes, who had been researching her family history when she came across information on her great - great - great grandfather.
He was involved a fight in the next village to here, Quilty, when a crowd of 'Wren Boys' celebrating St Stephen's Day went out playing music and collecting money for what they called locally 'The Scrap Dance', a local tradition.   
The fight had broken out and a man was killed, he was arrested and sentenced to be deported to Australia.
The lady researched the details of the fight, the court case, the voyage and the convict settlement he ended up in - a stunning piece of local history and an example of what lies out there.
One of the most poignant stories we ever recorded came from local fiddle player, Martin 'Junior' Crehan - he told it as he told one of his traditional tales.
Again it concerns a 'Wren' party, and tells of four men who set out one freezing winter during particularly hard times here in Ireland.
They travelled north from here visiting cottages and farms along the way, playing music and collecting money as they went, but they found the going particularly hard because of the state of the economy at the time.
They kept going till it became too dark to return home, so they pushed on north over the next few days until they finally reached Galway where they used what they had collected to buy a cheap passage to America and never returned to Ireland - 'The Wren that Went to America' Junior called it.
Jim Carroll