EntityQ3182759· pop 8· linked from 81 articlesJohn W. MackaySign in to saveIrish-American financier, prospector and mine operatorPerson · Open LibraryBorn1907Died1902-07-20Works1Top worksGood shootingvia Open Library + WikidataMusic · MusicBrainzTypePersonCountryATActive from1756-01-27Active to1791-12-05via MusicBrainz · CC0Key datesBorn28 November 1831Died20 July 1902via Wikidata · CC0Wikidata factsInstance ofhumanGiven nameWilliamGendermaleCitizenshipUnited StatesPlace of birthDublinPlace of deathLondonChildClarence H. MackayOccupationbusinesspersonImageJohn William Mackay.jpgShow 3 more factsP119ConnectionsITT CorporationCompanyWestern UnionCompanyXylem Inc.Categories1831 births1902 deaths19th-century American businesspeopleAmerican businesspeople in miningAmerican prospectorsBurials at Green-Wood CemeteryBusinesspeople from CaliforniaBusinesspeople from New York CityIrish emigrants to the United StatesITT Inc. peoplePeople from Five Points, ManhattanPeople from Virginia City, Nevada