"Jeb, Neil, Marvin, Doro and I are saddened to announce that after 94 remarkable years, our dear Dad has died", his son, former president George W Bush, said in a statement released on Twitter by a family spokesman.
George Herbert Walker Bush served just one term as United States president, but few occupants of the Oval Office could have felt history shifting so sharply under their feet.
He also saw his popularity swell with America's success in the 1990-1991 Gulf War, where USA forces liberated Kuwait from Iraqi control following an air and ground campaign.
In the 1992 election, a beleaguered Bush appeared helpless against the challenge of the younger, more charismatic Bill Clinton.
His political career saw him occupy a number of positions including congressman, Central Intelligence Agency director and Ronald Reagan's vice president for the Republican Party before becoming the first member of the Bush political family to reach the nation's top office.
Condoleezza Rice, who served in George H.W. Bush's administration and was secretary of state during his son's White House tenure, said the elder Bush was "the epitome of a public servant".
Populist FDR Democrat Brandon Presley says Former President Bush served America "with dignity both home and overseas".
George H.W. Bush, a patrician New Englander whose presidency soared with the coalition victory over Iraq in Kuwait, but then plummeted in the throes of a weak economy that led voters to turn him out of office after a single term, has died.
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US President Donald Trump has issued a statement, expressing condolences, and praising late Bush's "unflappable leadership", as well as the Republican politician's "authenticity, disarming wit, and unwavering commitment to faith, family and country".
George Bush Sr, as he was known, passed away on Friday evening, a statement said on behalf of the family.
As the last U.S. president to have served in World War II and the country's last Cold War leader, the end of Mr Bush's time in the White House marked the end of a political era.
After an $8.3 million renovation to the main exhibit on the life of Bush in 2007, the museum now features state-of-the-art audio guides, with the voices of George and Barbara Bush, as well as their daughter, Dorothy.
Bush, who was born June 12, 1924, in Milton, Massachusetts, grew up wealthy, attending elite schools but putting off college so he could enlist in the Navy at 18. "He was preceded in death by his wife of 73 years; his second child Pauline Robinson "Robin" Bush; and his brothers Prescott and William or "Bucky" Bush".
Our hearts ache with his loss, and we, with the American people, send our prayers to the entire Bush family, as we honor the life and legacy of 41. She died at 92 in April 2018.
Bush presided over economic malaise at home, and infuriated his fellow Republicans during a budget battle with rival Democrats by famously breaking his vow: "Read my Lips: No new taxes".
He flew combat missions from the aircraft carrier USS San Jacinto and won the Distinguished Flying Cross.