Dot, I was surprised when I went to www.familysearch.org that the first two spellings brought up NOTHING! and the last one only brought up "Germany"; but perhaps if you pursue some of the links that could come off of these, you would find out more? If you are not familiar with this site, it usually brings up quite a few possibilities for names, so this was a surprise for me. Just in case you haven't found these yet:
Just googling for the name brings up:
Cousinconnect.com and some other sites, all seem to be the same submitter? (maybe that's you!)
http://www.familysearch.org/Eng/search/frameset_search.asp?PAGE=ancestorsearchresults.asp (if this link doesn't work, you will have to go to www.familysearch.org and just type in the surname only to access these below, the links I mean):
Nancy
You searched for: Slesdet [refine search]
, All Countries
Exact Spelling: Off
Matches: All Sources - 7
International Genealogical Index - Germany
1. Charles Slesdet - International Genealogical Index / GE
Gender: Male Birth: , , Germany
Matches: International Genealogical Index/Germany - 1