I am just starting my research. My GG emmigrated to NY and married his wife, Mary Byrne. His name was Patrick J. Devlin (in Ireland it was O'Divilly but it changed to Devlin upon emmigration). He was born in County Galway, around Hedford. His father was John O'Divilly who married an Ellen Craven..in County Galway .I am trying to find what ship Patrick emmigrated on and then find more about my GGG....Any help/clues/tips would be appreciated.