Question: What railroad for which Oakes Ames is credit as being the single most important influence in building was caught up in the  Crédit Mobilier scandal?
Sentence (from "Jacques Laffitte"): He rebounded financially in 1836 with his creation of the "Caisse Générale du Commerce et de l'Industrie", a forerunner of French investment banks of the second half of the 19th century such as the "Crédit Mobilier" (1852).
Relevant evidence: No