Home / Business Magnates / John W. Mackay John W. Mackay 1831 – 1902 Business Magnates Business Magnates Biography John W. Mackay (1831–1902) was an Irish-American financier, prospector and mine operator. Born November 28, 1831 in Dublin. Died July 20, 1902 in London. Interred at Green-Wood Cemetery, Brooklyn, United States. AD ✝ LEGENDS AT REST Every legend has a story. Every story has a resting place. Explore the Legends at Rest books and profiles. Explore Legends at Rest → More Images Cemetery Map View larger map → Satellite overview of the cemetery grounds. Related Graves More business magnates → Nuri Killigil 1889 – 1949 Edirnekapı Martyr's Cemetery, Eyüpsultan, Turkey Business Magnates Carmen Vidal 1915 – 2003 Business Magnates László Bélády 1928 – 2021 Business Magnates Melvin Jones 1879 – 1961 Business Magnates