Dennis: My records do not show Jackleys in Potosi Wisconsin but interestingly they are in Potosi (Washington County) Missouri.
I have a Phillip Henry Jackley b. 1840 there married Angelina Maria Duke 1870 and died 1925 in Levenworth, Kansas. His father was Christian Jackley b. 1799 Switzerland. His son was Edward Christian Jackley b. 1880 Kansas City Mo.
I'm not sure if my records are accurate so I could be looking in the wrong area (notes were hand written by a family member long deceased). If anyone here looks familiar let me know.