I need a SWISS GERMAN translation pleasee!?

Rick is from Richard, if I am not mistaken, we have a number of Leahs and Leas and I know some Aarons too. The rest are not really translatable into Swiss German but would be translations of their meaning. According to Wikipedia the meaning of brenda is unknown, Megan stems from Margaret, this would be Margrit in Swiss German, Chelsea seems to mean 'Chalk Wharf', this cannot be translated into a name and Ethan means strong, firm, steadfast and safe.