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 article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: "David C. Brown" – news · newspapers · books · scholar · JSTOR (April 2015) (Learn how and when to remove this template message) This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations. (April 2015) (Learn how and when to remove this template message) (Learn how and when to remove this template message)