Question: Which country Roberta Semple Salter's mother is from?
Sentence (from "Roberta Semple Salter"): Roberta Semple Salter (September 17, 1910 – January 25, 2007) was the daughter of evangelist Aimee Semple McPherson and half-sister to Aimee's other child, Rolf McPherson.
Relevant evidence: Yes