question: Where was the father of Allan Hoover born?
context: [["Jeff Hoover", ["Jeff Hoover( born January 18, 1960 in Albany, Kentucky) is an American politician in the Republican Party of Kentucky."]], ["Reynold N. Hoover", ["Reynold Nelson Hoover( born May 2, 1961) is a lieutenant general in the United States Army, who serves as the deputy commanding general of the United States Northern Command."]], ["Obata Toramori", ["He was the father of Obata Masamori."]], ["Mikaela Hoover", ["Mikaela Hoover( born July 12, 1984) is an American actress."]], ["Gavin Hoover", ["Gavin Hoover( born July 12, 1997) is an American racing cyclist.", "He rode in the men's team pursuit event at the 2018 UCI Track Cycling World Championships."]], ["Herbert Hoover", ["Herbert Clark Hoover (August 10, 1874 \u2013 October 20, 1964) was an American engineer, businessman, and politician who served as the 31st president of the United States from 1929 to 1933.", "A member of the Republican Party, he held office during the onset of the Great Depression.", "Prior to serving as president, Hoover led the Commission for Relief in Belgium, served as the director of the U.S. Food Administration, and served as the 3rd U.S. Secretary of Commerce.", "Born to a Quaker family in West Branch, Iowa, he grew up in Oregon.", "Hoover took a position with a London-based mining company after graduating from Stanford University in 1895.", "After the outbreak of World War I, he became the head of the Commission for Relief in Belgium, an international relief organization that provided food to occupied Belgium.", "When the U.S. entered the war, President Woodrow Wilson appointed Hoover to lead the Food Administration, and Hoover became known as the country's \"food czar\".", "After the war, Hoover led the American Relief Administration, which provided food to the inhabitants of Central Europe and Eastern Europe.", "Hoover's war-time service made him a favorite of many progressives, and he unsuccessfully sought the Republican nomination in the 1920 presidential election.", "After the 1920 election, newly-elected Republican President Warren G. Harding appointed Hoover as Secretary of Commerce; Hoover continued to serve under President Calvin Coolidge after Harding died in 1923.", "Hoover was an unusually active and visible cabinet member, becoming known as \"Secretary of Commerce and Under-Secretary of all other departments\".", "He was influential in the development of radio and air travel and led the federal response to the Great Mississippi Flood of 1927.", "Hoover won the Republican nomination in the 1928 presidential election, and decisively defeated the Democratic candidate, Al Smith.", "The stock market crashed shortly after Hoover took office, and the Great Depression became the central issue of his presidency.", "Hoover pursued a variety of policies in an attempt to lift the economy, but opposed directly involving the federal government in relief efforts.", "In the midst of an ongoing economic crisis, Hoover was decisively defeated by Democratic nominee Franklin D. Roosevelt in the 1932 presidential election.", "Hoover enjoyed one of the longest retirements of any former president, and he authored numerous works.", "After leaving office, Hoover became increasingly conservative, and he strongly criticized Roosevelt's foreign policy and New Deal domestic agenda.", "In the 1940s and 1950s, Hoover's public reputation was rehabilitated as he served for Presidents Harry S. Truman and Dwight D. Eisenhower in various assignments, including as chairman of the Hoover Commission.", "Nevertheless, Hoover is generally not ranked highly in historical rankings of presidents of the United States."]], ["Walter Hoover", ["Walter Hoover( born December 30, 1934) is an American rower.", "He competed in the men's double sculls event at the 1952 Summer Olympics."]], ["Allan Hoover", ["Allan Henry Hoover (July 17, 1907 \u2013 November 4, 1993) was an American mining engineer, rancher, financier, and the younger son of President Herbert Hoover and First Lady Lou Henry."]], ["Cleomenes II", ["Cleomenes II( died 309 BC) was Agiad King of Sparta from 369 to 309 BC.", "The son of Cleombrotus I, he succeeded his brother Agesipolis II.", "He was the father of Acrotatus I, the father of Areus I, and of Cleonymus, the father of Leonidas II."]], ["Ron Hoover", ["Ronald Kenneth Hoover( born October 28, 1966) is a Canadian retired ice hockey left winger."]]]
supporting_facts: [["Allan Hoover", 0], ["Herbert Hoover", 3]]
evidences: [["Allan Henry Hoover", "father", "Herbert Hoover"], ["Herbert Hoover", "place of birth", "West Branch, Iowa"]]
answer: West Branch, Iowa