The copyrights of the Liahona magazine were held by The Church of Jesus Christ of Latter-day Saints and/or Intellectual Reserve (wholly owned by The Church of Jesus Christ of Latter-day Saints). Copyright was not renewed on the 28th year of the date of publication on this early issue, which has therefore fallen into the public domain per US law.
See:
Copyright registrations for 1971: Renewals for Periodicals Page 420 (Journal of Politics (cont.) - Liberty (start)
Copyright registrations for 1972: Renewals for Periodicals Page 436 (Kenyon Review (cont.) - Looney Tunes and Merrie Melodies Comics (start))
Copyright registrations for 1973: Renewals for Periodicals Page 463 (Journal of Urology (cont.) - Life (start))
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.