Interesting. I never thought about the replacement husbands.
It was unusual, stemmed from the assets. By contrast, one of my great-grandfather’s sisters was widowed (different part of Michigan) and as was often the case, only inherited the marital home and had the skills of a 19th c housewife, so she started to take in boarders.
Back in the 1990s one of her descendants was doing genealogy and contacted me via the forums we had back then. The information I had was in one of those biography books door-to-door peddlars use to sell to us rube, and it gave her second husband without mentioning the first one.
The genealogist didn’t have that info, but noted that she was descended from the first husband, and the second husband showed up in the census as a boarder. :^)