Norwood has always been Norwood. I was born and raised in the County so perhaps it is an “old time County” resident bit of knowledge. Newcomers would probably get a bit confused....
Perhaps you could clue in this Elizabeth Hartge?
When they referred to the ADC maps (which used to be excellent before the take-over), I actually would’ve been surprised if they referred to something that never existed. I’m sure ADC wrote “NORWOOD” in light blue, referring the area name, which may or may not be popular to use. Sometimes it harks back to an old town, sometimes a development. After all, looking at truly old maps, the big intersection near where I grew up was once called “Columbia”, but you’d never know it now. I never heard of that until I looked up old maps.