Néstor Curbelo has researched the history of Argentina, Chile, Paraguay, Uruguay, Bolivia and Peru since 1978. He as contributed more than thirty articles to the church news, and more than fifty articles for the local news in the Liahona. He has also published four church history books for the church in Argentina, Uruguay, Paraguay, and Bolivia between 2000 and 2005. In 2015 he was awarded the Leonard J. Arrington Award for distinguished service to Mormon history by the Mormon History Association.
Néstor is the author of The History of the Mormons in Argentina.