Sorry mate, just that you asked if NY based ABC flew the Impressions into New York. They didn't. They recorded (as did the Marvelows) in Chicago for the Chicago arm of ABC / ABC-Paramount.
I guess its based on the purpose of the exercise.
If this is a list of original labels that Soul Music recorded in Chicago can be found on, then given the 30 odd, pre-Curtom, top drawer Chicago Soul 45's (and loads of LP's) they recorded for ABC Chicago then I'd have said include it.
If, on the other hand, its a list of labels that recorded exclusively Chicago artists in Chicago, then leave it out!
Typically the label would say neither Chicago or New York - just to confuse us!
Sean