Bob Watt wrote in message ...

If you can find a copy of "Rails Under The Mighty Hudson" (Brian J Cudahy,
Stephen Greene Press, 1975) it will answer many questions about H&M/PATH
history.

There's a new edition out, by Fordham University Press.

I'd also recommend "The Hudson and Manhattan Railroad Revisited" by
Paul Carleton, published by D. Carleton Rail Books.

Michael Wares