Don't know if you can help me with this one. It's a bit of a mystery.I contacted Ozaukee Co Register of Deeds and they stated they didn't have a death record for this ancestor so I contacted Washington County Register of Deeds and they told me that they also did not. According to on-line information (familysearch or ancestry.com), he died in Ozaukee County (probably Thiensville/Mequon area where his parents' farm was located) on Jan 18, 1867 at the young age of 16 or 17 years. He was buried in the church cemetery in Dheinsville, WI.and not in Mequon and he was the only one of his immediate family to be buried there. Would someplace else have his cause of death? I do have reasons for wanting to know this information.