Today’s post continues our series about the life of Alfred Bonniwell, youngest son of Mequon’s Bonniwell family, and brother-in-law of Jonathan and Mary (Turck) Clark. If you missed them, our first installments are here, here, here and here. And for more on how the Bonniwells got from New York to Wisconsin in 1839, see Erie Canal – the Bonniwell Family 1832-39 , complete with a handsome, annotated map.
Alfred enters the public record
In our previous posts, we have discussed the lack of specific records documenting Alfred Bonniwell’s life after his baptism in Chatham, Kent, England in 1826, through his migration to Canada and his years in New York.1 That began to change once the family arrived in Wisconsin. Today I’d like to add to our knowledge of Alfred and his family by investigating an essential census schedule that provides important information about their first year in Wisconsin.
1836 & 1838 – Wisconsin’s first territorial censuses
The Bonniwells were still in New York at the time of Wisconsin’s first two territorial censuses in 1836 and 1838, but other notable Mequon pioneers were enumerated as they claimed and cleared land for new farms. If you missed our discussions of these early censuses, you can catch up by reading:
• Census Records for the In-Between Years: 1836, locating Jonathan Clark’s unit as they cut the Military Road along the Fox River, and
• Census Records for the In-Between Years: 1838, the first census for the original Washington county.
1840 – Federal decennial census
The 1840 federal decennial census2 is the first census that records members of the Bonniwell family in Wisconsin. It was enumerated in “Wiskansin Territory, Washington County, June 1, 1840.”

Ancestry.com. 1840 United States Federal Census [database on-line], Washington, Wisconsin Territory; Roll: 580; Page: 123; Hyde and Bonniwell households; Family History Library Film: 0034498. Image annotated, lightly tinted, and cropped. Click to open larger image in new window.
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