Hello Michelle In 1871 there are 3 Ellis WILLIAMS born 1840,1841 and 1843 living in Caernarfonshire, but only the last 2 born in Caernarfonshire as well. One, a Shoemaker, is married to Mary and has son Robert and the other is an Ag. Lab on his father, Robert's farm. Any good? Regards Maggi (Blythin)