I get simple from
Jean. Even breezy. But I don't get elegant. To me,
Jean is more down-to-earth, rugged even. But maybe it's just me.
From your list, these stand out as really great:
Jean AmabelJean DorothyJean EmelineJean Millicent
I don't think these flow very well:
Jean CamillaJean ClaraJean OpalJean RenataJean Susanna
Three boys nappin', one mama namenerdin'
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http://www.behindthename.com/pnl/82589