Lehndorf and Texdorff families of Lunow

I am working on the Lehndorf and Texdorff (possibly Textorff?) branches of my family tree.  They lived in Lunow.  I can trace back to the early 1800s - a Christian Lehndorf married a Karoline Muller.  their son, Christian, and his wife Justine Texdorf emigrated to New Zealand. I would really appreciate any help.  Thanks.