You might contact this FDA organization in Brazil to inquire about documents or artifacts. In view of this article, you might be disappointed because it appears they believe the Battle Hymn of the Republic is appropriate music to honor their ancestors. On the other hand, I might be a little too hard on them. Lots of Southern churches encourage their congregations to sing and play it.

http://www.time.com/time/magazine/article/0,9171,965976,00.html