Well, you gave credit to the authors (photographers) which is perhaps the most key thing, so had I taken the extra eight second to copy their names, data-search-input them into google, and see what would have come up, I might have already known this.
Let's try it out:
Odilon Simões Corrêa
EDIT:
It works, but it took until the fourth entry down; the first three were from perhaps their personal, Brazilian website.