The Memoir is the best source, but gets a few things wrong, for instance he (Judge Keogh ?) says the St. Mary poem was 250 pages long and was condensed by Moran. It was not, it is exactly as in appears in Bishop Coyle's book. He also gives St Patrick as Moran's work, which it clearly was not. Billy's Downfall is mentioned By PJ Mc Call ( 1893). He quotes 4 lines and tells a story of someone sending a small boy to acquire a copy of the poem from Moran. Twang Man, even according to O Lochlainn (whose loose reference led us all astray), is circa 1850 which is after Moran's time - Liam O' Meara