Photo was published in The Berkshire Eagle without a copyright notice. It was published the same day in other newspapers as well, without copyright notices, including:
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 unknown photographer, distributed by Associated Press Wirephoto from "Deputy Ambassador Named by Johnson to Vietnam". ''The Berkshire Eagle''. Friday February 23, 1968, page 3 with UploadWizard