The problem is it has some unverified information. In particular the part about Walloons from the Peshtigo area going to Superior. The timing of the Walloon language post was convenient as I had been looking at Martinette Co. Belgians. There aren't a whole lot compared to Oconto. What first made me question the claim was that I found no Belgians from this area that I had just been reviewing that I could not account for their whereabouts.
So that prompted me to look North. The problem I run into is find no Belgian’s whatsoever when I manually review all 14 pages of the 1880 Douglas -> Superior (ED 215) census. I also checked the 1875 state census, but had to look just for anything resembling a Belgian name since these records don’t have much detail. Again, nothing.
By 1900 or shortly there after an immigration boom occurs so the population increases a lot. This makes it harder to look at. Yes then there are tons of Belgian's with Flemish names. That's not to say some didn't emigrate from the Walloon area. But either way their arrival was certainly after 1880, and more or less right around 1900 or shorly there after.
It did also occur to me that these Belgian's who left the Peshtigo area and went to Superior might actually be the children of Belgians (WI born). That also make it harder to sort. But in all the pages I reviewed by eye, nothing made me a believer.
Kelly Biers seems to have gotten his information on the matter from the Superior Catholic Diocese website. https://catholicdos.org/the-belgians as this eludes to some Belgians who were from the Peshtigo area that made there way to Allouez, Douglas County. Then other web articles pretty much echo this. https://www.superiortelegram.com/business/belgian-club-welcomes-all-for-centennial-celebration "In Superior, Belgians started to settle in the Allouez neighborhood in the 1870s and their numbers continued to grow into the early part of the 20th century as they found work with the grain elevators and ore docks on Superior’s waterfront...."
I reached out two a couple people in Northern Wisconsin. First to Jon Winter with the Douglas County Historical Society. He looked in the February 10, 1906 newspaper however did not find any article regarding Belgians. This is cited on the diocese website. So at this point it was time to contact the diocese. Peggy M. Schoenfuss up there was kind enough to look into their archives. She sent me information on History of the Belgian club started 1912, and two documents on History of SS. Anthony & Margaret Parish, Allouez, Superior WI. None of this indicated a presense of Belgians prior to 1900. Ann Tracy up there who is in charge of the wesbite wrote "You've stumbled into an outdated part of our website that I don't have a lot of context on. I've sent over your email to a few folks who may be able to help and will follow-up when I hear from them. My guess is that this information was pulled from this old website from a local Superior church."
Jon at the Douglas historical society mentioned "In my research I've been reading Frontier Village The Birth of Superior Wisconsin by Ronald Mershart. There are local census tallies showing no Belgian born citizens in 1870 or 1880. A quote from the book is "It is noteworthy that Pole, Slovak, Finn and Belgian emigres, who would soon be an important element of the population of the burgeoning city, were nowhere to be found in 1880."
Lesson learned, don't believe everything on the internet. Also it would be nice if before the diocese led a bunch of people astray, they would have been more vigilant with their research before putting it online.