Tom Veitch referred to "Prison Ships used to Transport Jedi during the Clone Wars" early in Dark Empire. It boggles my mind what he might have been thinking when he wrote that.

Zahn wrote that the Dark Side cave on Dagobah was so since several Dark Jedi from Bpfassh (sp?) died/were destroyed there. Kind of an interesting thought.

Of course the spaarti cylinders are an interesting item. The whole bit about how it took a year to grow a full blown clone and the issue with the force driving them mad...

I get the impression from Zahn that cloning Jedi was definitely a big goal during the Clone Wars, but was darn near impossible.

I think Luke&Leia's mom gets a name in one of the books.

I think Luke's dad was called "Tam Skywalker" in one of the early Marvel comics. But he was called Anakin before the OT was over (at least according to Kenner), so you can probably safely throw that out.