(CBS News) Our country has a long history of family dynasties, from our founding political leaders to newspaper and oil tycoons that shaped society. But what makes for an influential family in America today? Town & Country magazine's upcoming May cover story features the 50 most prominent American families. The list is broken down into five categories with 10 families in each category: 10 Most Inspiring; 10 Most Generous; 10 Most Enduring; 10 Most Creative; 10 Most Powerful. Keep clicking for a look at the top family in each of those categories.