John Dwan Office Building

The John Dwan Office Building, located at 201 Waterfront Drive in Two Harbors, in the U.S. state of Minnesota was the location where Dwan, a Two Harbors attorney drew up the incorporation papers for the Minnesota Mining and Manufacturing Company (now 3M) in 1902. The new company’s vision was to mine and process corundum that the founders believed was plentiful on Lake Superior's north shore. The company nearly went bankrupt, because the mineral they were mining was useless as an abrasive and the high humidity at Lake Superior wreaked havoc with their adhesive process. Nevertheless the company survived by receiving financial support from Lucius P. Ordway, moving to Saint Paul, and changing its focus to manufacturing of abrasives with imported materials.

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