naval officer and explorer of the lake Nahuel Huapi, was born on
18 October 1858 in Mercedes, Buenos Aires, the eldest
son of Juan
Nepomuceno O'Connor (1830-1878) and his wife, Juana
Crespin (d.1861). Juan N. O'Connor, an army officer and
landowner, was the eldest son of Edward
O'Connor (d.1854) and Mary Hamond. Edward O'Connor emigrated from the United
States to Argentina and settled in Mercedes.
the age of fifteen, Eduardo O'Connor joined on 23 April
1874 the newly created Naval School. On 17 October 1874
O'Connor was promoted to midshipman
and was sent to France in order to complete his studies.
At the Toulon base he received intensive training in
cartography, which he would apply successfully upon return
By the end of 1880,
Eduardo O'Connor was sent to Río Negro and commanded the steamer
Río Neuquén. O'Connor was the first to sail
the river Limay in its
entirety, weighing anchor at Carmen de Patagones and reaching
lake Nahuel Huapi in 1883. O'Connor and his men explored
the lake and nearby regions, discovered lakes Moreno and
Correntoso, and reached Puerto Blest
near the border with Chile. After his return to Buenos
Aires, on 12 February 1885 Eduardo O'Connor married Modesta
(d.1929), daughter of Gregorio Castro and Lina Higueras. Eduardo
and Modesta had a daughter and a son.
In 1890, O'Connor
was a member of the revolutionary forces led by Aristóbulo
del Valle, Leandro N. Alem, Bernardo de Irigoyen, Mitre,
and others against President Juárez Celman. During
these events, he became the commander of the insurgent
navy. After four days of fierce fighting the rebels surrendered
but Juárez Celman resigned in favour of Carlos
Pellegrini. O'Connor was not discharged
but he had to face military trial. By the end of 1891,
he was sent to Tierra del Fuego, where he conducted hydrographical and topographic
research. O'Connor was appointed naval attaché in Paris,
and promoted to admiral in 1918.
died on 5 April 1921 in Buenos Aires. A street at San
Carlos de Bariloche, on the lake Nahuel Huapi, bears his
La Unión Cívica
(Buenos Aires, 1891).
Ruiz Moreno, Isidoro, La Marina Revolucionaria 1874-1963
(Buenos Aires, 1998).
Balestra, Juan, La Revolución del 90 (Buenos Aires,
Coghlan, Eduardo A., Los Irlandeses en la Argentina: Su
Actuación y Descendencia (Buenos Aires, 1987), p.