Colonial/pioneer pottery?

[Henryadams1492]

Hi
I'm not too sure what I have here. These were found on a site that goes back thousands of years. While these are not Native American, wondering if these are a specific type of pioneer pottery from the 1800s or so? I show front and back sides and some close ups of the bigger pieces. One of them is about 1/2" thick and had a white glaze with cracked look to it.
Any ideas what these are and possible ages? From Wisconsin by the way.
Thanks

 

Amazon Forum Fav 👍

How to Research for Treasure Hunting and Metal Detecting From Lead Generation to Vetting - Grab it through Amazon!

[bradyboy]

Glazed?
I also see what looks like a porcelain shard
they didn't glaze thousands of years ago, actually didn't make pottery, to my knowledge
Curious, how do you know its not native American?
Just asking, very courious
Seems like you have a cool sweet spot - work it to the bone
Brady