"Ned Walthall" wrote

I think there also used to be an "industrial" league in New York City. And I
know Pittsburgh has a great league, but as I recall, it is not hooked up
with companies.

Information on the pittsburgh chess League is available at:
http://www.pitt.edu/~schach/ChessPA/...gue/wpapcl.htm

It originally started as an industrial league, but over time fewer and
fewer companies have competed, so that now clubs and independently
formed teams predominate.

- Tom Martinak