Thanks for the reply, Dave. Another item - the New York Broadcasting History Board has three messages regarding the first bulletin over WCBS about Pres. Kennedy being shot. The question asked was who read the first bulletin, the one that preceded the Net Alert with Allan Jackson. Someone answered it was news director Joseph Dembo. I believe the clip is on the WCBS "News 88 Appreciation" site.
I have the first few hours recorded from WCBS-FM. There was an interview with a judge discussing probelms with kids, juvenile delinquency and so on. I recognized the voice but didn't know the person's name. According to the "Farewell to Studio 9", the Net Alert bulletin came from that studio. BTW, a WTOP engineer gave me an old News Alert unit. I gave it to an engineer friend in Waterbury CT.
Take care and have a good holiday.