Early Wisconsin Stoneware & Earthenware

3 examples of Wisconsin stoneware

Wir verdienen unser Geld vom Schmutz”
“We make our money from the dirt”

– Sheboygan Potter from the 19th century

Early Wisconsin Pottery

A presentation from March, 2000 by Mark Knipping.
Written by Kari Kenefick 

Mark Knipping of the State Historical Society of Wisconsin brought some of his stoneware collection to the WPA meeting, and demonstrated, perhaps inadvertently, that stoneware collectors don’t mess around.

In case you think you like stoneware and might try to pick up a piece at a sale here or there, you might have reconsidered after hearing Mark’s talk. It seems that the stoneware collectors are an extremely dedicated group, driving miles to sales, at all hours of the day or night, for a chance to add to their collections. What makes them do it?

Wisconsin Stoneware Bowl

Mark began his talk by explaining that potters learned early on that Wisconsin’s soil was not really suitable for stoneware or earthen-ware. And that it was easier during the mid-19th century, to take the potter to the clay than the clay to the potter. Due to limited means of transportation back then, moving materials such as clay around was simply not practical.

But there was stoneware and earthenware produced in Wisconsin, and Mark explained the distinctions between the two potteries and production times.

The earliest pieces produced in Wisconsin, were earthenware pots. Made of red clay, this product is also known as “red-ware”. It is traditionally glazed on the inside only, as the Wisconsin clay resulted in a porous pot that would not hold liquid without the glaze, which served as a sort of lining.

From the information Mark has gathered we know that one earthen-ware producer was still advertising his pieces in 1893, and that he died in 1899. (Sorry that poor note-taking prohibits me from providing further information, but other club members probably can fill in the gaps here.)

Wisconsin Stonewre churnAlong the shore of Lake Michigan clay could more easily be transported, which meant that potters didn’t have to rely so much on the local supply and soil type. Thus Wisconsin stoneware was born. Pieces from as early as 1840s have been found.

Mark pointed out that they differed from earthenware in that they tended to be made by factory, versus smaller home-based businesses for earthenwares. Mark pointed out that the shape of some pieces helps tell their production dates. The earlier, 1840s jugs had sloping, less defined shoulders, while the turn of the century brought the “beehive” shape, with sharply defined shoulders.

There are serious quality differences between stoneware and red-ware. Redware was fired at about 1700°F, while stoneware was fired much higher, perhaps 2700°F. The higher firing temperatures vitrified the silica in the clay, literally turning it into glass. Thus stoneware is nonporous and holds liquid.

The early stoneware producers were commonly German immigrant as tells a common motif on stoneware, the tulip, popular in Germany as a design element. If you see a stoneware piece with a tulip flower (and this design appears to have been rather liberally interpreted in some cases, with flowers hardly recognizable as tulips in many cases) you can be fairly certain that it is a German potter’s handiwork.

Members admire Wisconsin stoneware
Mark Knipping with examples he
& others brought to the March 2000 meeting.

The heyday for stoneware manufactured in Wisconsin was 1848-1875, with the Redwing company firing up their stoneware kilns and production about 1862. It was interesting to learn that Redwing shipped it’s stoneware all over the country, so Redwing Stoneware has a very large US-wide collecting market. It is very possible, and even believed by some, that Redwing drove a number of other stoneware producers out of business.

In his dissertation on Wisconsin Pottery in 1972, Mark Knippen identified 248 potters who worked at approximately 40 kilns.  He found a lot of his data by going through the 1850 through the 1890 census data looking for people who identified themselves as potters.  A question that could be answered from this data was if the person created pottery or was just in the business.

Thanks to Mark for his fascinating presentation on very old Wisconsin pottery!

Gallery – Examples from the presentation

The hand-thrown earthenware bowl above was made in Sheboygan, Wisconsin.  As you can see, the bowl melted irregular in the kiln.  This was due to the poor clay found in Wisconsin.  Earthenware was produced from the local clays.  Earthenware is porous verses stoneware which is vitreous.  Stoneware is made from clay brought in from other states & mixed with sand.  Local potters would add local clays to stretch their supply of clay.  The piece above has a lead glaze to reduce absorption.  The two pieces of earthenware were made by Conrad Londenberg (sp?) who sold to 20 stores in the Sheboygan area, which he haul in a cart from store to store.  He also sold pottery from his house.  He started selling in 1856 & was still selling in 1893.  He died in 1899.


The stoneware crock above with the Albany slip interior is marked “T Guenther – Sheboygan”.  This was made by Theodore Guenther who got his clays from the east coast.  The crock & the two churns above & the two jugs below are salt glazed.  Salt would be thrown in the kiln where it would vaporize & then coat the pottery with a clear coating.  The blue designs were done with cobalt salts.  The brown jug below used magnesium to create that color.

Related Sites:

(The sites will open up in a new window)

Mr Bottles – Has an extensive listing of over 100 clay beer bottles made in Wisconsin from 1850 until the turn of the century.  The listings include name, location and pictures of many.  Be sure to read the introduction to clay bottles because it contains information about how they were made, of what materials, the markings and much more.  Recently added were pictures of Wisconsin Antique Stoneware.

2002 Show: The Red Wing Legacy: Stoneware, Art Ware and Dinnerware

The Wisconsin Pottery Association 2002 Show and Sale
August 2002


Outside of a Red Wing convention, the possibilities of seeing this many examples of Red Wing identified doesn’t happen very often, except in books.

The 2002 Exhibit display had several rare Red Wing pieces & an example of every line of Red Wing’s dinnerware.

Continue reading “2002 Show: The Red Wing Legacy: Stoneware, Art Ware and Dinnerware”