Mamie van Doren? 
Van Doren was born Joan Lucille Olander in Rowena, South Dakota, the daughter of Warner Carl Olander (March 30, 1908 – June 4, 1992) and Lucille Harriet Bennett (January 21, 1912 – August 27, 1995). She is of three-quarters Swedish ancestry; the remainder is mixed English and German.
The 'van' made you guess she was of Dutch origin? Yeah, when a name begins with 'van', it's usually from the Netherlands, or at least close to the Dutch border (like with van Beethoven). Wiki doesn't mention where Mamie got her 'van Doren' from.
So, the Netherlands is very busty then; already found a kinda busty American girl from the fifties with a fake Dutch name; we're on a roll here!

Nah, just kidding; boob-wise the Netherlands isn't too bad, but the country is very old fashioned. It's the most church-dense country of the world, people are very restrained. The average Dutch girl doesn't strut her stuff, either for fear of being seen as a slut, or because showing off is not in their nature.
The general image of the country is based upon short visits to Amsterdam coffee shops and its red light district, but that's not representative of the country!