Having extracted more than 40 famous astronomers from the memory but still left with gaps, the penny finally dropped last night. I am looking forward to reading a paper in a future Journal detailing the previously unknown astronomical works of Messrs Alkali Stone, Ten Elite Brains, Harry Can Find Me and Crime Or Fine. Aside from that, many thanks to the contributors for an excellent selection of brain teasers. I am attempting it without any research, just staring at questions and worrying them to death. Just the job for those of us suddenly in Tier Alcatraz.