Familia: Luis Patricio O'Farrell Harrington / María Marcela Nelson Duggan (F9926)
c. 14 Abr 1915Santiago Gregorio O'Farrell Seery (1861-1926) 
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Margarita Harrington Culligan (1864-1935)
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Juan Miguel O'Farrell Harrington (1894- )  |
| León O'Farrell Harrington (1891-1969) |
| Gabriel O'Farrell Harrington (1899-1977) |
| Uriel O'Farrell Harrington (1901-1986) |
| Alejandro O'Farrell Harrington (1907-1952) |
| María Teresa O'Farrell Harrington (1889- ) |
| Margarita O'Farrell Harrington ( -1925) |
| José Jaime O'Farrell Harrington (1887-1960) |
| John Nelson MacCormack (1859-1931)
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| Juana Luisa Duggan Casey (1870-1920)
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| Juan Santiago Jack Nelson Duggan (1891-1983) |
 | Luis Tomás Nelson Duggan (1894-1964) |
| Olivia Isabel Nelson Duggan (1896-1980) |
| Luis Patricio O'Farrell Harrington (1890- )
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| María Marcela Nelson Duggan (1892- )
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 | Luis Patricio O'Farrell Nelson (1919- ) |
| Ricardo O'Farrell Nelson (1922-1984) |
 | Juan O'Farrell Nelson (1916- ) |