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William Herman Potstock, known as Wilhelm Hermann, (1872–1908) left an indelible mark as a German-American composer and musician. 

Born in Northern Germany, Potstock migrated to the U.S. in 1881 with his family, settling in Chicago where he carved a niche as a self-employed music teacher and performer. In 1895, he wed Martha Bock, raising two musically gifted children, Stella and Eugene. His daughter, like her father, showcased remarkable musical prowess.