Betty, you may want to join this group. I have both Kleidosty and Hafner in my family tree, several members research Zwickl
"OUR BURGENLAND ROOTS" RESEARCH GROUP
If you have ancestors from Austria-Hungary, particularly the Burgenland area, who settled in northwest Kansas and southwest Nebraska, you might like to join our social network called Our Burgenland Roots. This fun and recently formed group is committed to compiling and sharing genealogical and related records (e.g., photos, family histories and other documents) to the mutual benefit of its members.

If you respond with your name and an e-mail address to maryerushing@yahoo.com, we’ll send to you an invitation to join or go to www.myfamily.com/group/ourburgenlandroots and ask to join.

Ed. note: At my request, Mary shared additional information about the group. It formed initially as an email exchange but, wanting a better way to do this, a member set them up in January as a private family group on MyFamily.com, a sister site to Ancestry.com. There are currently (in mid-February) 32 members who have posted 7 family trees, 16 photo albums (holding 276 photos) and 12 data files, and who also have 58 discussion threads underway. For BB members who have family from this area, it appears to be a great group to join!