..While I cannot backup the following story with schedule data from the time, the story is still in of itself interesting....
When I was commuting back and forth to college in the early 70's, I would take what is now the North Jersey Coast Line from the Jersey shore to Newark. This was when the PRR and the Jersey Central split the task of providing service; the CNJ terminated at Newark while the PRR changed engines at South Amboy and ran electric into Penn Station, New York.
I liked taking the PRR; I enjoyed watching the engine change and the difference in smoothness or ride and rate of acceleration with the GG-1 was impressive. I also got to meet and know several of the Conductors and learned a lot about the PRR in doing so.
One of those conductors was Jack Phillipson, who lived in or near Point Pleasant Beach. The PRR had become the Penn-Central and was starting to heavily promote the "new high-speed Metroliner Service" between New York and Washington. I was remarking about the 100 mile-per-hour plus speed of the trains, and he just smiled and let me finish my thoughts... I still remember his reply...
"...people are making such a big deal about the service being "fast" and "new"... ...People don't remember, but during World War II, we ran "Clocker" service between New York and Philadelphia at 125 miles per hour, every hour, with M1 steam locomotives; and we made the trip in one hour. So I don't understand what is so fast and new about it; it has taken us 30 years just to get back somewhere near where we used to be."
Like I said, I cannot back up his statement with schedule data, but Mr. Phillipson was a long-time PRR man. He knew his stuff and was not prone to exaggeration. While I cannot imagine that an M-1 steam engine ever ran through the tunnels in and out of New York Penn Station; they no doubt did run from Jersey City. And whether it was from New York or Jersey City; an hour "exactly" or "just about" an hour; it still was an amazing testament from that time!