Born 1908 Wisconsin. PhD Wisconsin 1935. Invented first practical getter-ion vacuum pump. Built first practical negative ions source. Developed tandem accelerator. Named Pelletrons. Work influenced Manhattan Project atomic bombs. Founded NEC manufacturing accelerators. Won Bonner Prize 1968. Elected National Academy Sciences. Honorary doctorate São Paulo 1960. Taught nuclear physics Wisconsin-MIT. Supervised J. A. Ferry. University Wisconsin holds Herb seminars. Died 1996 age 88.