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) This biography of a living person needs additional citations for verification, as its only attribution is to self-published sources; articles should not be based solely on such sources. Please help by adding reliable, independent sources. Immediately remove contentious material about living people that is unsourced or poorly sourced. (February 2011) (Learn how and when to remove this template message) This biography of a living person relies on a single source. You can help by adding reliable sources to this article. Contentious material about living people that is unsourced or poorly sourced must be removed immediately. (February 2011) (Learn how and when to remove this template message) This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (February 2011) (Learn how and when to remove this template message) This biography of a living person needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately from the article and its talk page, especially if potentially libelous.Find sources: "Keith Cronin" – news · newspapers · books · scholar · JSTOR (February 2011) (Learn how and when to remove this template message) (Learn how and when to remove this template message)