Eng. Alejandro Foster
Alejandro Foster (Buenos Aires, Argentina; September 18, 1877 - Buenos Aires, Argentina; June 25, 1951) was an Argentine agricultural engineer, founder in 1924 and president of the Argentine Rural Society
of Trenque Lauquen in 1933, 1934 and 1935. 
Alejandro Foster was the son of Adelaida Ponsati Vidal (1847-1916), originally from Buenos Aires, and Enrique Foster (1842-1916), Argentine colonizer and surveyor, founder of Monte Oscuridad and co-founder of the city of Resistencia, Province of Chaco, Argentina. 
His father Enrique had a natural son around 1865 with Isabel Llames (1845-?): Enrique Arturo Foster (1865-?), but a few years later he married Adelaida Ponsati, on January 17, 1873 in Buenos Aires, Argentina, and with whom he had 7 other children: Alejandro Foster (1877-1951), Ricardo Ignacio Foster (1881-c.1959), María Foster (1873-1873), Celia Cecilia Foster (c.1889-?), Ricardo Luis Foster (1874-1874), Enrique V. Foster (1878-1942) and Carlos Foster (c.1866-?).
Ricardo I. Foster (1881-c.1959) married Ana Mooney, and was an Argentine lawyer and politician, deputy of the province of Santa Fe in 1934-1935, and Minister of Public Instruction of the same province from 1935 to 1937.
Celia Cecilia Foster married Álvaro Francisco Leguizamón Ovalle (1883-1956), in turn son of Guillermo Leguizamón del Llano (1853-1922), politician and one of the founders and main architects of the formation of the Radical Civic Union with whom he maintained a close relationship with Leandro N. Alem (1841-1896) and Bernardo de Irigoyen (1822-1906) until the end of their days.
Enrique V. Foster (1878-1942) was an Argentine university professor and pediatrician, and married Corina de Tezanos Pinto Torres Agüero (1879-1979), in turn daughter of David de Tezanos Pinto (1849-1934), a Chilean lawyer and university professor who stood out in both the public and private spheres, and was considered an eminence in the field of law.
The two remaining children, Maria Foster (1873-1873) and Ricardo Luis Foster (1874-1874) died at birth.
It should be noted that the son of his father Enrique's first marriage, Enrique A. Foster was a successful Argentine merchant and politician, who married the Spanish María Dolores Castaño (c.1870-?) in 1890.
Alejandro Foster married on May 14, 1902 with María Magdalena Paula Nazar Miguens (c.1864-?) in Buenos Aires, Argentina and together they had 7 children: Rómulo Foster Nazar, Nelly Foster Nazar (c.1911-2007), Magdalena Foster Nazar, Dora Foster Nazar (1908-1993), Hugo Foster Nazar (?-1994) and Marta Foster Nazar (1909-?).
Rómulo Foster Nazar was a doctor and married María Florentina Funes Urízar.
Nelly Foster Nazar (c.1911-2007) married Captain Héctor Padilla Córdoba.
Magdalena Foster Nazar married Ernesto Juan Pasman Davison (1903-1985) on July 19, 1928 in Buenos Aires, Argentina.
Dora Foster Nazar (1908-1993) married lawyer Eduardo Miles Pasman Davison (1904-1979).
Hugo Foster Nazar (? -1994) married Susana Adela Benítes Capdevila (? -2011) and finally Marta Foster Nazar (1909-?), married Dietrich Heinrich von Grolman Gradín (1901-1978). 
Alejandro Foster was born in 1877 in Buenos Aires, Argentina.  His parents had settled there for a few years, and after the Peace Treaty between the Argentine Confederation and the State of Buenos Aires, they returned to the Province of Santa Fe, Argentina.
Determined like his father Enrique Foster (1842-1916), he began to be interested in biology and geography and graduated in 1901 as an agronomist, dedicating himself to the rural environment and the agri-food sector.
Argentine Rural Society
The Argentine Rural Society, from it's birth during the first presidency of Bartolomé Miter (1821-1906) and as representative of the interests of the most important landowners, has had a strong influence for more than a century and a half, directly or indirectly, in the policies of the successive governments of the Argentine Republic.
The institution made sense from a suggestion by Bernardino Rivadavia (1780-1845) and among its partners were the English consul Juan Parish Robertson (1792-1843), Gaspar Campos (1831-1868) and Miguel Riglos (1790-1863), but the entity lasted only three years, since a malón managed to take almost all the cattle, which reached almost six thousand heads and belonged to the Society of Shareholders.
It was not an ideal context to think that the future of the Argentine Republic was in the field, but a group of 13 producers, 12 of them foreigners, decided to form a society in charge of bringing purebred specimens from Europe to improve the quality of the exploitation.
In 1866 the Argentine Rural Society was founded. 
Performance in the Rural Society of Trenque Lauquen
The Trenque Lauquen Rural Society was founded in 1924. It's founder and first president was the engineer Alejandro Foster (1877-1951), who created it as a non-profit commercial, social and cultural institution. 
It currently has a history of more than 90 years and its main objective is to defend the interests of the production and producers of the agricultural sector of Trenque Lauquen in Buenos Aires, Argentina.
In the Rural Society of Trenque Lauquen, the partners find the necessary representation to work together, achieving results that would not be achieved if the companies in the sector and the producers acted in isolation. 
The Rural Society created by Alejandro Foster (1877-1951), is the only institution that represents and defends the interests of the sector in an organized way and allows its insertion in the community that participates in the different instances of dialogue with other local institutions: Municipality, Development Agency, INTA, UTN, NGO, political parties, etc. Along with other rural societies in the area, the Sociedad Rural Argentina de Trenque Lauquen is associated with the Rural Confederations of Buenos Aires and La Pampa (CARBAP), which is also a member of the Argentine Rural Confederations (CRA), a member of the Office of Link and the chain of representativeness that is formed as follows: Rural Society of Trenque Lauquen (SRTL), Confederation of Rural Associations of Buenos Aires and La Pampa (CARBAP) and Argentine Rural Confederations (CRA).
Alejandro Foster died on June 25, 1951 in Buenos Aires, Argentina, after an extensive professional career.
- History of the Sociedad Rural of Trenque Lauquen.
- Census of 1895 in Buenos Aires, Alejandro Foster and Ponsati, from Argentina, 18 years old, single, student, can read and write. Foster research ®.
- Family Genealogy Consulted by Ezequiel Foster.
- Irish Genealogy Richard Foster & Amalia Kagel. Accessed on October 17, 2019 by E. Foster.
- History of the Argentine Sociedad Rural. Look at Yesterday.
- La Rural de Trenque Lauquen. His Story.
- History of the Sociedad Rural de Trenque Lauquen. Published on September 2, 2011.
- Guillermo Kraft (1939). Quién es Quién en la Argentina, Primera Edición.