Page from promotional booklet, A Mother's Manual

Page from promotional booklet, A Mother's Manual

Page from promotional booklet, A Mother's Manual, 1928, from Ralston Purina.

Ry-Krisp advertisement, 1919.

Magazine advertisement from Good Health magazine

Magazine advertisement from Good Health magazine, July 1919, published by Dr. John Harvey Kellogg.

Photograph of an assembly line at the Ry-Krisp factory.

Assembly line at Ry-Krisp factory, Minneapolis

Assembly line at Ry-Krisp factory, Minneapolis, 1955.

Two men posing next to a Ry-Krisp batter-mixing machine.

Two men by a mixer, Ry-Krisp factory

Two men by a mixer, Ry-Krisp factory, 1949.

Photograph of the Ry-Krisp Company factory.

Ry-Krisp Company, 824-830 Sixth Avenue Southeast, Minneapolis.

Ry-Krisp Company, 824-830 Sixth Avenue Southeast, Minneapolis, c. 1925.

Ry-Krisp

In 1904, immigrant baker Arvid Peterson gave a Swedish-styled cracker a modern American name and introduced the country to Ry-Krisp. For decades, Minneapolis was the one and only location where the product was made.

photograph of a train in a clay pit, filled with clay

Barclay workers at Zumbrota

A Barclay Brick and Tile Company locomotive pulls three railcars filled with clay from the Zumbrota factory's pit.

photograph of clay miners in a clay pit

Clay miners at Claybank

Miners at a Claybank pit near Goodhue fill steam-shovel buckets with clay, c.1910.

Photograph of a group of factory employees

Red Wing sewer pipe workers

Red Wing Sewer Pipe factory employees with some of their wares stacked and ready for shipment, c.1910.

photograph of clay miners

Clay diggers

Miners pose next to a rural Goodhue County clay pit, c.1905.

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