Alexander Hamilton Phillips (1867-1937) spent his career at Princeton University, first as a student and then as a professor of geology and mineralogy. In 1904 he succeeded in extracting radium from a sample of carnotite from Utah. This was the first radium produced in the United States. He donated this sample of radium to the Smithsonian in 1913.
Ref: Alexander H. Phillips, “Radium in an American Ore,” Proceedings of the American Philosophical Society 43 (1904): 157-160.
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