FILE - In this April 12, 1991, file photo, family members of late U.S. Sen. John Heinz, R-Pa., attend a service of thanksgiving for Heinz at the Washington National Cathedral in Washington, D.C. In the front row, from right, are Heinz's widow Teresa Heinz and his sons H. John Heinz IV, Andre Heinz and Chris Heinz. Teresa Heinz Kerry, 77, plans to step down as chairwoman of the Heinz Endowments in October 2016, according to a plan released by the $1.6 billion foundation on Monday, May 23, 2016, paving the way for her sons Andre Heinz, Chris Heinz and H. John Heinz IV to fill the position in a series of four-year rotations. (AP Photo/Charles Tasnadi, File)