Isham Day was one of the very first white pioneers to settle in the future Town of Mequon, Wisconsin Territory. I first wrote about Isham Day, and his historic house—later Mequon’s first post office, and also known as the Yankee Settlers’ Cottage—in an earlier post, River Walk. You might want to read that before continuing with today’s essay.
Isham Day was not only one of the first settlers in this area, he was active member of the small but growing community in what would become Washington and, later, Ozaukee counties. There is a lot to say about his role in the early decades of pioneer life in the Clarks’ neighborhood, some of which is already known through early local histories and various federal and local primary sources. (And he appears in six different posts here at Clark House Historian.)
One thing that is less well known is what happened to Isham Day after those early days in Milwaukee and Mequon. I wanted to know and, after an extended search, I found out. In many ways, it’s a story of the stereotypical moving-ever-westward American pioneer experience. But it’s also a story of a man trying to live a peaceful life in the midst of violence and rebellion. In our recent post, Memorial Day, 2023, we remembered some of our local men that fought and died to preserve the Union and end the scourge of slavery in “the land of the free.” Today we examine one of the many civilian casualties of that conflict: Isham Day.

Isham Day house (“Yankee Settler’s Cottage”), built 1839, Mequon, Wisconsin. The oldest house in Ozaukee county still on its original foundation. Photo credit: Anna Perkins, 2021.
Please note: sensitive or younger readers may find some of the language and events documented below to be disturbing.
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