Since your ancestors came to the US before 1870 you might look for their names in a film file at the LDS family history library: Grundbuchblatter Diverse See: FamilySearch.org Click on Library; library catalog; and use the words above as title or keywords. The FILM NOTES will give you the number of the fillms with names starting with Po and Sve The films show the personal records of Bohemians who served in the Austrian army. They always give a place of birth. You may not find Anton Pokrefkiy or Franz Pokrefky but if you find anyone with that name you will know where he lived. If there is more than one record with that name besure to copy all of them. Then find the birthplaces mentioned on all of them. You may find that they cluster together within 25 miles or so of each other. That will at least tell you an area where your surname(s) could be found. A check of parish records will tell you more -- may find the name with the first names you need. Do you know if these ancestors spoke Czech at home? If they did they may have been Czech and not German-Bohemian. I ask because their names appear to be Czech, not German. The Baca books are found at virtually every genealogy collection in US public libraries as well as at the LDS. Find out if they are in your local library or the library of the nearest big city. Karen