The title of this paper was chosen both for pedagogic and for rhetorical reasons. On the face of it, the title makes little sense. For "everyone knows" that the three great neoclassical economists were Jevons, Menger and Waliras. Their joint contribution was the development of marginal analysis. Walras specifically emphasized general equilibrium analysis. Marshall synthesized the new econoiid.cs, or neoclassical economics, with the insights of Ricardian orthodoxy, and developed a new orthodox that reigned in the Anglo-Saxon world until the thirties, when Hicks and Alien reintroduced Walraslan and Paretian ideas.
O'Driscoll, Gerald P., "Was Carl Menger a Neoclassical Economist?" (1977). Economic Staff Paper Series. 127.