My gt-gt grandfather, Robert Lee, was born in Barnsley abt 1815, the son of a miner. By 1851 he was in Sussex working as a platelayer. In 1860 he was in Carentan, Normandy. In 1881 he was in Liverpool, still a platelayer. Could anyone suggest which railway companies he might have worked for, especially whilst he was in Carentan.