Former U.S. President George H.W. Bush (bottom) celebrates his 85th birthday by jumping with the Army's Golden Knight parachute team in a tandem jump with SFC Michael Elliott in Kennebunkport, Maine in this file handout photo released June 12, 2009.

Father and son, both former U.S. Presidents, George H.W. Bush (L) and George W. Bush, shake hands at the dedication for the George W. Bush Presidential Center on the campus of Southern Methodist University in Dallas, Texas April 25, 2013.

Father and son, both former U.S. Presidents, George H.W. Bush (L) and George W. Bush, shake hands at the dedication for the George W. Bush Presidential Center on the campus of Southern Methodist University in Dallas, Texas April 25, 2013.

President George W. Bush, center, poses with President-elect Barack Obama, second left, and former presidents, George H.W. Bush, left, Bill Clinton, second right, and Jimmy Carter, right, in the Oval Office of the White House in Washington. Bush has died at age 94. Family spokesman Jim McGrath says Bush died shortly after 10 p.m. Friday, Nov. 30, 2018, about eight months after the death of his wife, Barbara Bush.

President George W. Bush, center, poses with President-elect Barack Obama, second left, and former presidents, George H.W. Bush, left, Bill Clinton, second right, and Jimmy Carter, right, in the Oval Office of the White House in Washington. Bush has died at age 94. Family spokesman Jim McGrath says Bush died shortly after 10 p.m. Friday, Nov. 30, 2018, about eight months after the death of his wife, Barbara Bush.

President George W. Bush, center, poses with President-elect Barack Obama, second left, and former presidents, George H.W. Bush, left, Bill Clinton, second right, and Jimmy Carter, right, in the Oval Office of the White House in Washington. Bush has died at age 94. Family spokesman Jim McGrath says Bush died shortly after 10 p.m. Friday, Nov. 30, 2018, about eight months after the death of his wife, Barbara Bush.

Egyptian President Hosni Mubarak (L) and U.S. President George H.W. Bush talk during a meeting in the White House Oval Office in Washington October 20, 1989.

Portrait of the Bush family sitting in front of their home in Kennebunkport, Maine, August 24, 1986. BACK ROW: Maragret Bush (Marvin's wife), holding daughter Marshall, Marvin Bush, Bill LeBlond (Doro's Husband). FRONT ROW: Neil Bush holding son Pierce, Sharon (Neil's wife), George W. Bush holding daughter Barbara Bush, George Bush, Sam LeBlond (Doro's son), Doro Bush LeBlond, George P.

Former US president George Bush (R) and German Chancellor Angela Merkel (L) sit on a stage during a ceremony to inaugurate the new US embassy building in Berlin. - George H.W. Bush -- the upper-crust war hero-turned-oilman and diplomat who steered America through the end of the Cold War as president and led a political dynasty that saw his son win the White House -- died Friday. He was 94.

Former US president George Bush (R) and German Chancellor Angela Merkel (L) sit on a stage during a ceremony to inaugurate the new US embassy building in Berlin. - George H.W. Bush -- the upper-crust war hero-turned-oilman and diplomat who steered America through the end of the Cold War as president and led a political dynasty that saw his son win the White House -- died Friday. He was 94.

Former US president George Bush (R) and German Chancellor Angela Merkel (L) sit on a stage during a ceremony to inaugurate the new US embassy building in Berlin. - George H.W. Bush -- the upper-crust war hero-turned-oilman and diplomat who steered America through the end of the Cold War as president and led a political dynasty that saw his son win the White House -- died Friday. He was 94.

U.S. President Barack Obama awards the Medal of Freedom to former U.S. President George H.W. Bush during a ceremony at the White House in Washington February 15, 2011.

U.S. President Barack Obama awards the Medal of Freedom to former U.S. President George H.W. Bush during a ceremony at the White House in Washington February 15, 2011.

U.S. President Barack Obama awards the Medal of Freedom to former U.S. President George H.W. Bush during a ceremony at the White House in Washington February 15, 2011.

U.S. President Barack Obama awards the Medal of Freedom to former U.S. President George H.W. Bush during a ceremony at the White House in Washington February 15, 2011.

U.S. President Barack Obama is introduced to speak by former President George H.W. Bush at the Points of Light forum at Texas A&M University in College Station, Texas October 16, 2009

Bush family portrait in Houston, Texas August 19, 1992. Back row: Walker Bush (Marvin's son), Marvin Bush, Margaret Bush ( Marvin's wife), George W. Bush, Sharon Bush (Neil's wife), Neil Bush, Doro Bush Koch, Bobby Koch (Doro's Husband), Jeb Bush, George P. Bush (Jeb's son), and Noelle Bush (Jeb's daughter). Second Row: Laura Bush (George W.'s wife), Jenna Bush (George W.'s daughter), Pierce Bush (Neil's son), Barbara Bush, Goerge Bush, Sam Le BLond (Donro's son), and Columba Bush (Jeb's wife). Floor: Barbara Bush (George W.'s daughter), Marshall Bush (Marvin's daughter), Ashley and Lauren Bush (Neil's daughters), Ellie LeBlond (Doro's daughter), and Jebby Bush( Jeb's son).