William Clay Ford and his bride, the former Martha Firestone, dance after their wedding ceremony in Akron, Ohio, in this June 21, 1947 photo. Bridgestone/Firestone Inc. is ending a century-long relationship with Ford Motor Co. that became strained in the last year following the recall of millions of Firestone tires linked to at least 174 U.S. traffic deaths. (AP Photo/Akron Beacon Journal)