found: Adams, Charles Warren. Adams v. Coleridge and another, 1886:t.p. (Adams; i.e. Charles Warren Adams, plaintiff)
found: Novels of mystery from the Victorian age, 1945:p. xiii (Charles Felix, to whom authorship of "The Notting Hill mystery" is ascribed)
found: New York times book review, Jan. 9, 2011:p. 23 (Charles Warren Adams (1833-1903); author of "The Notting Hill mystery" under the pseud. Charles Felix)
found: Warren, Charles Adams, The Notting Hill mystery, 2012:title-page (Charles Warren Adams, written under the pseudonym Charles Felix)
found: Wikipedia, accessed May 14, 2015(Charles Warren Adams, 1833-1903; English lawyer, publisher and anti-vivisectionist; briefly owned the publishing firm Saunders, Otley & Co.)