Ireland. Irish Military Intelligence Service & O'Donoghue, F. (1940). Letter from "A54" to Florence O'Donoghue requesting the names of the operators in the Cable Station in Waterville, co. Kerry, and giving information about other persons working at the Central Telegraph Office in Dublin and the Valentia Western Union Cable Co.

Ireland. Irish Military Intelligence Service and Florence O'Donoghue. Letter from "A54" to Florence O'Donoghue Requesting the Names of the Operators in the Cable Station in Waterville, Co. Kerry, and Giving Information About Other Persons Working at the Central Telegraph Office in Dublin and the Valentia Western Union Cable Co. 1940.