I am seeking information about Edward Halton, my maternal great grandfather. He and his wife Margaret were both born in Ireland c.1849. Their first child, Delia, was born in New York c.1875 after which they returned to UK where second child Mary was born c. 1877. He was a Police Constable in Rawtenstall, Rossendale, Lancs for many years and my maternal grandmother Margaret was born 1886. I would dearly love to explore the Irish connection and am also very inquisitive as to why they returned from USA to UK. I would appreciate any information anyone may have.