This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) The topic of this article may not meet Wikipedia's notability guideline for biographies. Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention. If notability cannot be shown, the article is likely to be merged, redirected, or deleted.Find sources: "William A. R. Robertson" – news · newspapers · books · scholar · JSTOR (August 2013) (Learn how and when to remove this template message) This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources.Find sources: "William A. R. Robertson" – news · newspapers · books · scholar · JSTOR (March 2020) (Learn how and when to remove this template message)