Steve, hope this is what your were looking for?

Mohawk El.: 545' Loc.: Yuma

In 1869 Mohawk was not the same place as Mission Camp.  
 
That's exactly what I was looking for, Ken. Thank you.

The above was taken from: Arizona Place Names, Revised and enlarged by
Byrd H. Granger, The University of Arizona Press, 1960. 
 
I've always wanted to get a copy of that book. Now I may have no choice.
 
Steve
Team Tierra Buena