Christine; I don't know of any source, but am sure interested if you find one. My great-grandfather, Richard HERRON, came to the US from N. Ireland in the early 1870's and worked his way (with his family) westward from Berwick PA, Niles OH to settle in Muncie, Indiana. He was an iron "puddler". I have much genealogical data, but would like also to find that occupational information. Best wishes, Ann Bergelt Florida