I didn’t expect a wedding photo to pop up in the day’s top business stories. But this one did. Henry Ford’s grandson, William Clay Ford, married Harvey Firestone’s granddaughter, Martha Firestone in 1947 (1948 according to the photo correction). William Clay Ford Jr., Ford’s chairman, is the great-grandson of Henry Ford and Harvey Firestone. Firestone hasn’t been family run since 1976 and is now part of Bridgestone, a Japanese company. As Firestone dissolves its 100 year business ties with Ford, one wonders if it would have been different if both families were still running their respective businesses.