When The Iroquois Confederacy (The Six Indian Nation) wrote the 1774 letter declining their offer for college education, who wrote that? Is there a way to know if it was written by a certain individual or if it was just translated?

by lorddeezee

lorddeezee

This is the link to the letter itself http://boards.ancestry.com/topics.ethnic.natam.intertribal.six-nations/58/mb.ashx while it says "Sirs" at the beginning, the book I found it in, Letters in American History, has the header reading "Greetings!"