Trying to research my grandfather John Montgomery who, according to the ships manifest when he and his family immigrated to the U.S. in 1923, was born in 1878 in Whitcabby, Ireland. I can find no trace of such a place. Any help in finding any records would be kindly appreciated. He was a merchant marine and returned to the UK while the rest of the fmily stayed in the US. Thanks for any help. Jack Lashua