Henry Posner III

[12] Since 2017, Posner has been an adjunct instructor at Dietrich College of Humanities and Social Sciences Department of History at Carnegie Mellon University (CMU), teaching the course "The American Railroad-Decline and Renaissance in the Era of Deregulation".

[7] In the course Posner shares eccentric stories of his time working in the railroad industry.

In 2021 Posner hired two students from the course to facilitate work on a battery-operated Vivarail D-Train imported from the United Kingdom for the "Pop-up Metro" project.

[13] In February 2022, Posner briefly returned to front line service, crewing and interpreting on board a refugee rescue train operated by RDC Deutschland between Frankfurt (Oder) station and Hannover Messe station in Germany, following the 2022 Russian invasion of Ukraine.

[6][14] In mid-2022 the Posner Foundation renewed its yearly grant funding to Operation Lifesaver for work towards increasing safety at level crossings.