I've recently found a record showing my Great Great Grandparents Michael Goecks, his wife Caroline and family coming from Prussia to the US in May 1869. They settled in Waukesha County, WI. Their son Charles "Carl" lived most of his life in Hartland. I have seen the name spelt many different ways. In the ships records from CaslleGarden.org their name is listed as "Jocks". A daughter Wilhelmine is also listed. The name is pronounced Jakes.