original_query: What evidence suggests that the leaders of N&W/C&O had no knowledge of Rogers' involvement until he and Page were ready?
query: What evidence suggests that the leaders of the Norfolk and Western Railway and the Chesapeake and Ohio Railway had no knowledge of Henry Rogers' involvement in the Virginian Railway until he and William Nelson Page were ready to reveal it?
answer: There is no direct evidence proving the N&W/C&O leaders lacked knowledge of Rogers' involvement. However, the text states that despite numerous rumors mentioning Rogers and various companies (including Standard Oil), there's no credible evidence the N&W/C&O had confirmation until Rogers and Page revealed it.