I think I have located some ancestors on Ancestry.com's "Passenger & Immigration Lists Index, 1500s - 1900s. The information is very general and I'm not sure they are my ancestors. It says for the two records that I've found that they are on page 192. It also says something about the original data: Filby, P. William, ed. and the Source Bibliography: BACA, LEO, Czech Immigration Passenger Lists...".
Where can I find these documents so I can see the detail on page 192? I'd like to find their origin and the names of all the family that came over and the ship's name, etc.