Waltons Among Forbes' Top 20 World Billionaires by Lance Turner Posted 3/13/2012 11:32 am Updated 5 years ago Four members of Arkansas' Walton family rank among the world's billionaires, according to the latest list by Forbes magazine. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access articles older than 15 days. Articles newer than 15 days are not included in this offer. Purchase Now Already have archive access? Login to view this article.