What futher foreshadowing is there in this chapter regarding the Spanish-speaking people living with Mattie ?

Mattie's sanctuary for refugees deals with several prominent themes of the novel. These refugees are mostly from South American dictatorships, as will later be revealed. This is the fullest and most literal expression of the idea of most of the novel's characters as foreigners, the logical extension to Lou Ann and Taylor's status as outsiders living in Tucson. The sanctuary also operates under the principle of communal, unselfish help, just as the women in the novel (Lou Ann, Mattie, Taylor, Sandi) aid one another.