By 1952, Cecil S Robinson was no longer affiliated with Robinson Airlines.

"Robinson Airlines of Ithaca Wednesday asked the civil aeronautics board to approve a change of name to Mohawk Airlines Inc. Robinson revealed earlier in the week that it would be making the request. John R. Carver, vicepresident, said the change was sought because Cecil Robinson, for whom the firm was named, no longer is connected with the airline, and because the board of directors felt a personal name was not suitable for a public utility. CAB officials have indicated that the board will approve the change of name. The board may act within about 2 weeks, officials said."

"Airline Formally Asks Name Change," Ithaca Journal, August 7, 1952, 3.