Michael O'Shaughnessy
Michael Maurice O'Shaughnessy (May 28, 1864 – October 12, 1934) was an Irish civil engineer who became city engineer for the city of San Francisco during the first part of the twentieth century and developed the Hetch-Hetchy water system.
Personal facts
| Birth date | May 28, 1864 |
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| Date of death | October 12, 1934 |