Ethnicity

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Appears to be Jewish per this source. We need further confirmation.

  • Twin Cities Sports: Games for All Seasons. University of Arkansas Press. February 3, 2020. p. 134. ISBN 978-1682261095. By this time, Minneapolis' Jewish citizens were creating their own enterprise. Restaurateur Max Winter, movie-house mogul Ben Berger, ice-show promoter, Morris Chalfen, and young newspaperman, Sid Hartman....were the principals in what became professional basketball's first dynasty