I have been trying to contact former agent Paolella concerning this question. So far, he hasn’t answered my inquiry. I’ll keep working on it. Some of the agents who would have been there are still alive.
You might try to direct your inquiry to Vince Palamara, the foremost authority on the secret service in the 60’s. If he can be of help, he will be glad to assist you. He is a personal friend of mine and a very good researcher. He can be reached at the above email address.
Abraham W. Bolden, Sr