I'm pleased to know that we may have "relatives" in Mexico... I'm from Uruguay, but living in France for more than 20 years, so I can say that there is a french Amaral branch (quite small) and a much more larger Amaral branch in Uruguay ! It'll be a pleasure to hear from you, so, feel free to e-mail me at your convenience (spanish will be fine).
Meanwhile, receive a warm salute from your french-uruguayan branch !!! ;-D