Tsu-Ming Han

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Over the centuries the Upper Peninsula has grown and developed due to many immigrants who arrived. Some of their stories are known but most have been lost to time. One of these stories belongs to Tsu-Ming Han, a Chinese immigrant, a geologist and senior research laboratory scientist at Cleveland-Cliffs Iron Company (now Cliffs Natural Resources). He came to the Upper Peninsula in the 1950s and was instrumental in the development of lower grade iron ore refinement processes and pelletization, which had a direct impact on the region and its people. In his spare time as a geologist, he identified an ancient fossil, Grypania Spiralis. Additionally important to the story is his family: Joy his wife and his children; Dennis, Timothy, and Lisa. This is another major effort of Northern Michigan University's Center for Upper Peninsula Studies to shed new light and ideas on the history of the U.P.