Good morning! My grandmother was Caroline Tiedeman/n, daughter of Albert Tiedeman/n and Elizabeth Louisa(?Sharkey?>Schaak). Albert, whose parents were Albert,and Margaret Schenk, arrived in Australia ca 1857, probably a few years earlier, and settled in the Maitland area. He married Elizabeth Louisa in 1858, and his marriage certificate gives those names for his parents, and Holstein as his birthplace. I have done some research on the family in Australia and would be pleased to meet other researchers here.