Ah, that would have been an entirely different "Jack".
My earliest memory of WPAW had the studio at People's Coal in Valley Falls. When Nick was granted the full kw days and 500W directional nights he had RCA do a turnkey on the John Street site but continued to run it from the old studio as he had a bad experience with a hired manager and wanted the whole thing where he could see it all the time. It wasn't too long before operations moved to the new building (which is still there, though a transmitter shelter only). In the earlier days the transmitter was somewhere along a different river with a tower that got bent by a boat during a hurricane flood. I think the studio was, at that time, in the lower part of a building Nick owned in downtown Pawtucket (perhaps below People's Camera Shop. I believe one of the two RCA transmitters he bought at the time of the move may still be maintained as a backup.