The photo was published in Lanier High School's 1966 yearbook. No copyright notices can be found on the yearbook as shown in the Ancestry.com link. Thus the photo is in the public domain in the United States.
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 (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
Uploaded a work by University Studios from Proof of publication: [https://www.ancestry.com/imageviewer/collections/1265/images/sid_515_1966_0015?ssrc=&backlabel=Return Ancestry.com] (requires registration) Image source: [https://images.findagrave.com/photos/2005/109/5922_111403074941.jpg Find a Grave] with UploadWizard