Michael O'Shaughnessy

'''Michael Maurice O'Shaughnessy''' (28 May 1864 – 12 October 1934) was an Irish civil engineer who became city engineer for the city of San Francisco during the early twentieth century and developed both the San Francisco Municipal Railway (Muni) and the Hetch Hetchy water system. He is sometimes credited as being "the Irishman who built San Francisco." Provided by Wikipedia