Huh, it looks like the author of that older map might not have realized that "Pennsylvania 6-5000" is about the telephone number of a hotel in New York City (whose telephone exchange was named after Pennsylvania Station, which was named after the Pennsylvania Railroad, which was named after the Commonwealth of Pennsylvania).
I'm amused that in the blowup of New York State, Canajoharie is called out.
I lived in upstate New York for about 15 years and would not have been able to identify the town -- until a few years ago when They Might Be Giants wrote a song with that title.
This is also the reason the well known 1940 swing song of the same name recorded by the Glen Miller band - after the phone number of the Pennsylvania hotel on 8th Ave whose ballroom they regularly played.
"Washington Bullets" isn't about Washington state either, which seems like a thing he'd be likely to know, so maybe he wasn't trying to be that strict.
I lived in upstate New York for about 15 years and would not have been able to identify the town -- until a few years ago when They Might Be Giants wrote a song with that title.
http://tmbw.net/wiki/Canajoharie