When Harold Percival was ten years old, his father died and his mother moved to the United States, settling in Boston, and later in New York City.
ໃນເວລາທີ່ Harold Percival ມີອາຍຸສິບປີ, ພໍ່ຂອງລາວໄດ້ເສຍຊີວິດແລະແມ່ຂອງລາວໄດ້ຍ້າຍໄປສະຫະລັດອາເມລິກາ, ຕັ້ງຢູ່ Boston, ແລະຕໍ່ມາໃນເມືອງນິວຢອກ.