José Hernández was an Argentine journalist, poet, and politician best known as the author of the epic poem Martín Fierro.
Hernández, whose ancestry was a mix of Spanish, Irish, and French, was born on a farm near San Martín. His father was a butler or foreman of a series of cattle ranches. His career was to be an alternation between stints on the Federal side in the civil wars of Argentina and Uruguay and life as a newspaperman, a short stint as an employee of a commercial firm, and a period as stenographer to the legislature of the Confederation.
Hernández founded the newspaper El Río de la Plata, which advocated local autonomy, abolition of the conscripted "frontier contingents", and election of justices of the peace, military commanders, and school boards. He opposed immigration, because he believed it undermined the pastoral foundation of the region's wealth. He envisioned a federal republic based in pastoralism, but also featuring a strong system of education and a literate population.