Check personal documents such as family registers, old passports, pictures of the deseased family members, birth announcements, marriage certificates, photos, transfer contracts and the like.
Interview older relatives and/or family friends.
They can usually read old writings well, and often have photos from earlier times and know the names of the people who are in the pictures.
Nutzen Sie Familienfeiern zum Daten sammeln
Nicht selten kommt es vor, dass sie dort erfahren, dass bereits jemand sammelt und sich gerne mit Ihnen austauschen möchte.
Doing your research on the Internet:
Here you will find church records (baptism, marriage and death books), also called matrices or matriculations, from Austria, Bosnia and Herzegovina, Germany, Italy, Luxembourg, Serbia and Slovenia.
You could also conduct your research in public archives
If the data that dates further back, you can take a look into church or parish archives. You will often also find important information in local history books, local clan books, local family books, hereditary farm research, home directories and similar publications.
Asking an expert(s):
www.iaf.co.at - Herwig Zott, Institute for Genealogy and Family Research
www.ihff.at - Felix Gundacker, Institute for Historical Family Research