English: Was used on the front page of the Dallas Morning News the next day[1]; 1963 issues of that newspaper apparently did not have their copyright renewed. Could not find any relevant renewals on copyright.gov from the Dallas Morning News.
Date
Taken on 24 November 1963
Source
Original publication: Photograph by Jack Beers Jr., Dallas Morning News photographer.
Copyright expired because the work was published without a copyright notice and/or without the necessary copyright registration. Per [1], "no issue copyright renewals found in CCE or registered works database; contributions renewed at least as far back as Nov. 30, 1923; see 1951 Jul-Dec"
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.