Former President George H.W. Bush and George W. Bush, followed …

AP | published: April 21, 2018

Former President George H.W. Bush and George W. Bush, followed by former first lady Laura Bush follow as pallbearers carry the casket of former first lady Barbara Bush after a funeral service at St. Martin's Episcopal Church, Saturday, April 21, 2018, in Houston. (AP Photo/Evan Vucci)