He was a legal scholar who authored many books, including
Commercial Law (1898), ''Richardson's Commercial Law
(1904), Outlines of Contracts
(1908), Outlines of Bills and Notes
(1914), Principles of the Law of Contract
(1920), Selected Cases in Evidence
(1927), The Law of Evidence
(1928), The Law of Suretyship and Guaranty
(1929), The Law of Bailments, Carriers, and Innkeepers
(1937).The concise but extremely practical work on Evidence by Dean William Payson Richardson ... has been regarded highly since its first appearance, both by members of the judiciary and by practicing lawyers. The present reviewer reviewed the first four editions in the columns of the New York Law Journal'' and emphasized the immense practical value of the treatise, particularly for attorneys practicing in New York... In using "Richardson on Evidence" students, professors and lawyers alike will be aided by the point of view of an able and thorough master of the law of Evidence, whose scholarship and erudition have been polished by the experience that is the good fortune of the active teacher. == References ==