Was America's First Thanksgiving in El Paso?

According to some El Paso residents, the first Thanksgiving on the North American continent was celebrated by Spanish explorer Juan de Onate on April 30, 1598 near the Rio Grande. April 30, of course, is Willie Nelson's birthday, so there is basis to believe that April 30 is truly a day of divine providence. Jokes aside, the first El Paso Thanksgiving occurred after a grueling fifty-day march where water-mad people ate roots to survive and horses drank until their stomachs burst upon arriving at the Rio Grande. After all of that, the feast began.

Here is a link to the full story about what could very well have been the first Thanksgiving in North America:

http://texasalmanac.com/topics/history/timeline/first-thanksgiving