As a visual observer, I worked for the Radio and Space Research Station (1966-1981), then became independent. I can remember the names of 50 Satellite Orbits Group staff who were useful to Geoff. It's worth mentioning two or three of the leaders:

The third, Alfred Moorat said "Perry has no right to be phoned. He is a private individual". Despite his interdiction, I was still phoning Geoff daily with new launches, orbital elements, events and my finds which had a habit of getting reported as his.

Last time I offered him a scoop was in 1983 when the world was following anxiously The nuclear core in Cosmos 1402 (82-84A). I demonstrated by densities that it was in 82-84C.

In SPACE issue 2/83 (from the Earth Satellite Research Unit at Aston University) and probably written by Max White:

I received from two people (one was Barbara Greenfield) photocopies of Geoff's article in Reader's Digest where I found my discovery attributed to him.

If any of you have still my S.O.N.'s from Slough, the last was Nr 822.

Outside the Satellite Group, I remember Ken Tapping (radio record of 68-102B decay). In Kettering Group, a very bright 17 y-old committed suicide for unknown reason. He should be remembered. I also remember Bob Christy visiting my office and friends met at Kettering funerals.