At Argentina there are different branches of Elortegui. We'll identify them by the persons who travelled to the country, being the founders of each branch.
In chronological order, the first branch we have notice is founded by the sons of Juan Antonio Elortegui and his wife Maria Antonia Larrauri. Their sons Alejo Elortegui Larrauri, Pablo Elortegui Larrauri, Juan Antonio Elortegui Larrauri y Francisco Elortegui Larrauri travelled to Argentina between 1898 and 1910. Their descendants are living today at Buenos Aires and Olavarria, and they are a wide family.
Some of their relatives founded branches at Uruguay and Chile.
Later, in 1906 and the '20 decade, arrived some other Elortegui to Argentina, but we have no more notices about them.
