I read where the original were gauchos were deported European Jews who were enslaved to take care of the cattle on the Pampas. Eventually they made own their own communities, intermarried and rustled all the cows and broke free.
In the early days of the 20th century, Alberto Gerchunoff was the first Jewish immigrant author in Argentina who wrote in the local language, Spanish, instead of Yiddish. His philosophy was about integration, while maintaining the Jewish heritage.
«The Jewish Gauchos»