Tony Goodwin is a regular and enthusiastic FJ racer in both the UK and Europe (see previous recent threads). If you are ever at a meeting with an FJ race, there's a good chance he'll be there. I'm not sure if he's entered for Hockenheim this weekend, though. The other possibilities are the BRDC
http://www.brdc.co.uk/brdcarchive.cfm/flag/3/picid/160 and Duncan Rabagliati of the Formula Junior Historic Racing Association.