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 == Citation for, ""O'odham-speaking peoples were at odds with Apaches"" == 

 I found this reference for explaining the conflict between the O'odham and the apaches. 
  THE APACHE WARS 
 1. 	 The Aravaipa Massacre (April 30, 1871)  
 A. 	 Peaceful Western Apaches established a village at Camp Grant 
 B. 	 150 Tucson Vigilantes with Mexicans & Tohono O’odham attacked believing all Apache were evil 
 C. 	 86 to 150, mostly women & children killed / Women raped, children carried to slavery 

 http://www.arizonahistoricalsociety.org/education/esperanza/native/apache_wars/"