Hi Lisa, This may help: (From NSW Births, Deaths and Marriages) Constance H Unterrheiner was born in 1869 in NSW. Her parent's were: Adam John Unterrheiner born 1828 in Laubenheim, Germany. He died in Macksville in 1911. Married Barbara Boagen Borger in 1854 in Germany. (from Miles Family Tree)
Their children were: Johanna born 1859 in NSW. Adam John Mary (assumed/not verified) Constance H Henry J born 1871 in NSW. Louisa (died 1926 in NSW) Emma Caroline born 1874 in NSW. Hope that gives you something.