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William O. Weissich

  • Class
    1943
  • Honors
    Rifle (1942-1943)
A native of Mill Valley, Weissich graduated in Philosophy in 1943, and was a member of Scabbard and Blade, St. Ives, the Thomists, the Wasmann Society, and was in the ROTC.

William Otto Weissich was born on October 31, 1920, in San Francisco, and grew up in Mill Valley where his family had settled in 1907. He attended Marin County schools and graduated from the University of San Francisco where he also obtained his law degree from the School of Law. During World War II, he served in the U.S. Army Reserve. In December 1946, he was admitted to the California State Bar and entered into private practice in Marin. In 1950, he joined the Marin County District Attorney’s Office as a Deputy District Attorney. When District Attorney Richard M. Sims was appointed to the Marin County Municipal Court bench in 1953, Weissich was appointed District Attorney by the Marin County Board of Supervisors to serve out Sims’ remaining term. Thereafter, Weissich was elected to serve as District Attorney and held that position until 1960 when he resigned and entered private practice again. During his tenure with the Marin County District Attorney’s Office he gained a reputation as a fearless, hard-hitting, and relentless prosecutor who in either victory or in defeat was neither overly elated nor unduly discouraged (MarinCountyDA.org).

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