Number One Air Personality — 18 Months After Returning to WJR     DETROIT — J. P. McCarthy of WJR is the king of the air personalities in Detroit, according to the record industry. McCarthy received 52 per cent of the votes of record dealers, distributors, one-stop operators, and local and national record company executives … Continue reading WJR’S McCARTHY IS TOP DJ IN DETROIT . . . JULY 2, 1966