There is a comprehensive library of Wendish family books and information at the Lutheran Archives at Bowden.
The group launched a Wendish Pioneer Heritage Trail, a set of 6 interpretive signs at 6 significant sites of Wendish Settlement in SA (Hope Valley, Rosedale, Ebenezer, Neukirch, St Kitts and Peters Hill) in September 2012, funded by grants from History SA and Multicultural SA. Photos of signs and unveiling here
Learn more about the Wends in Australia at the Wendish Heritage Society of Australia here
This website may be interesting to researchers. It traces the descendants of Johann and Anna Zwahr who married in Gröditz, the German Kingdom of Saxony in 1812. They were the parents of eleven children, including five brothers who are the main study of this family history. Three of these brothers emigrated to Australia - Michael (1849/50 VIC), Johann (1851 SA) and Peter (1854 SA).