I am also looking for Sullivan, Harrington and King. My great grandfather, John Sullivan, came to US in 1871 or 1873. Two different dates on two different census. His parents are Timothy Sullivan and Mary Harrington. No solid information on exact location he came from in Ireland. Says he came from Cork to US into Ogden New York? this from his daughter in-law who is 89. He lived in Ishpeming Michigan and died there. His wife is Mary King and they had 13 children. There was a Julia Shea as a witness at their marriage. John seems to be rather elusive.