I have to say, while his novel is of course a work of imaginative fiction (though apparently loosely based on his own family’s history), Behrens’ depiction of the Pontiac County Irish in The O’Briens strikes me as uncannily accurate, and all but “real.” His account of Irish strivers in Montreal in the 1920s, 30s, and 40s also has that quality of “could almost be real.”
Of The Law of Dreams, I am not so certain when it comes to the question of historical accuracy. Well, a novelist is not a historian, obviously, and the novel is under no obligation to provide documented proof of the verisimilitude of its representations.
The famine/hunger chapters at the beginning of The Law of Dreams are possibly the best depiction I’ve yet to come across of the Irish Famine, and never mind the documents: they have the quality of a nightmare, where it all seems screw-y and off-base, and yet you fear it’s all too real. These chapters are almost a form of poetry. The subsequent, post-Famine, adventures of Fergus O’Brien (as an almost-”pearl boy” in Liverpool, for example) strike me as basically romantic Oy-rishness in their picaresque quality, though great fun to read. Peter Behrens is a great storyteller.