The above spellings I feel all belong the the same family. Using the internet, FHC microfilm, German's to America, Census records from England and US, US city Directories, Ellis Island, Ancestry.com, Genealogy.com, Familysearch.org and German and US telephone books, I have found close to 100 individuals from 1600 to today with the above names.

 List of Trees with the Silkenstadt names