I was interested to read about the Lansdell family in SC etc. I am just starting to search for Lansdells in my background. I am finding the same names, Abraham, Isaac, William. The big difference is that they all live near Norwich, Norfolk, England in 1800- 1851. The usual occupation was blacksmith.
Have you traced your Lansdell family back before 1800? When did they immigrate to the USA, and where did they come from?