Penn Central RPO Routes

I've read that Penn Central operated a NY and Buffalo RPO over the former NYC that was discontinued Nov. 4, 1969, a NY and Springfield RPO over the former NH that was discontinued Dec. 4, 1969, and a Pittsburgh and Chicago RPO over the former PRR that was discontinued June 26, 1970. I was wondering if anyone might know the numbers of the specific trains that carried these RPOs. The information that I have found only lists the dates the RPOs where discontinued but not the train numbers that carried them. Thanks.

Contacting railroad historical societies or archives that have collections related to the former New York Central, New Haven, and Pennsylvania Railroad might yield more detailed information. They may have access to primary source materials with the train number details you're seeking age of war

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Moving this to Fallen Lags, Penn Centra