Everywhere I looked, even adding the word "authentic" to my Google search, I came up with similar recipes for "Mexican Wedding CAKES".
Here's one that supports marmalady's speculation and suggestion in the post above: http://www.verybestbaking.com/recipe....aspx?ID=28616
Sounds like a wonderful twist on the Russian Tea Cakes I've always made!
Maybe because pecans weren't indigenous to Russia, Mexico, Sweden, etc. is the reason why these cookies were made specially for weddings and holidays.