Harold Ray Heath grew up, for part of his young life, near Gray's Lake, Idaho. (1) On 30 of June 1914, he left Gray's Lake to serve a mission for the Church of Jesus Christ of Latter-day Saints in Australia. (2) The following link will take you to a recording of his son, Robert Mitchell Heath, talking briefly about an experience Harold had after his mission.
http://emilyheart8.podbean.com/2011/03/05/harold-ray-heath-and-his-mission-to-australia/
(1)1900 United States Federal Census, Bingham, Gray, Enumeration District 21, page 13B, accessed at ancestry.com
(2) Gray's Lake Ward, 1907-1948, The Church of Jesus Christ of Latter-day Saints, 1914, page 17, Family History Library microfilm 0007458