You have very good (though not complete) coverage of the (NORTH) Shields Daily News (under its changing names) right up to 21 August 1959 when it ceased to be a daily paper. The final edition of the paper in your archive has, handwritten on the top of the front page, 'Last issue of this paper. Continued as Shields Gazette', That is incorrect. The Gazette is a quite different SOUTH Shields paper.
The fact that there was a proprietorial link between the North and South Shields newspapers (owned by Northern Press at the time) might explain the confusion but there is no doubt they were quite distinct newspapers editorially and in content. May I put in a plea that you add the Shields Weekly News to your future programme of digitisation.