Question: Which country Patrick Hemingway's mother is from?
Answer: American

Pauline Marie Pfeiffer (July 22, 1895 – October 1, 1951) was an American journalist, and the second wife of writer Ernest Hemingway. Patrick Miller Hemingway (born June 28, 1928) is Ernest Hemingway's second son, and the first born to Hemingway's second wife Pauline Pfeiffer. During his childhood he travelled frequently with his parents, and then attended Harvard University, graduated in 1950, and shortly thereafter moved to East Africa where he lived for 25 years