Gabriel Sherman is an American author.
 In 2014, he wrote a biography about Fox News Channel president Roger Ailes called "The Loudest Voice in the Room: How the Brilliant, Bombastic Roger Ailes Built Fox News – and Divided a Country", which debuted at #9 on The New York Times Bestseller list.
The Loudest Voice in the Room: How the Brilliant, Bombastic Roger Ailes Built Fox News - and Divided a Country is a 2014 biographical book about Fox News Channel president Roger Ailes written by Gabriel Sherman.
 which debuted at #9 on The New York Times Bestseller list.
A foreign-born Japanese (外国生まれの日本人 , gaikoku umare no nihonjin , literally "Japanese person born in a foreign country") is a Japanese person of foreign descent or heritage, who was born outside Japan and later acquired Japanese citizenship.
 This category encompasses persons of both Japanese and non-Japanese descent.
 The former subcategory is considered because of intricacies of national and international laws regarding the citizenship of newborn persons.
Edwin Leard Mechem (July 2, 1912November 27, 2002) was a prominent Republican politician from New Mexico.
 He served as the 15th, 17th and 19th Governor of New Mexico and represented the state in the United States Senate.
 Mechem was the first person born in the 20th century to become the state's governor, as well as the first person born in New Mexico after statehood to succeed to the office.
 He later served as a Federal Judge.
Nabi Tajima (田島 ナビ , Tajima Nabi , born 4 August 1900) is a Japanese supercentenarian.
 At the age of , she is the world's oldest verified living person and the last surviving person born in the 19th century.
 She is the oldest verified Japanese and Asian person ever.
Ronald Brittain, MBE (2 September 1899 – 9 January 1981) was a well-known Regimental Sergeant Major (R.S.M.) in the British Army.
 The Warrant Officer class 1, who was reported on widely in the newspapers of the day, featured in several British military training films during the Second World War.
 He was said to have possibly the loudest voice in the British Army
Clarence Richard Silva, popularly known as Larry Silva (born August 6, 1949), is a bishop of the Roman Catholic Church.
 He is the fifth Bishop of Honolulu, appointed by Pope Benedict XVI on May 17, 2005, to oversee the Diocese of Honolulu.
 Previous to his appointment to the epicopacy, he served as a diocesan priest and later vicar general of the Diocese of Oakland in California.
 He is the first person born in Hawaii to lead the Roman Catholic community of the Hawaiian Islands.
 He is also the second person of Portuguese ancestry to serve the community as its ordinary.
A mamzer (Hebrew: ממזר‎ ‎ ) is a person born from certain forbidden relationships, or the descendant of such a person, in the Hebrew Bible and Jewish religious law.
 A "mamzer" in modern Jewish culture is someone who is either born out of adultery by a married Jewish woman and a Jewish man who is not her husband, or born out of incest (as defined by the Bible), or someone who has a "mamzer" as a parent.
 Mamzer status is not synonymous with illegitimacy, since it does not include children whose mothers were unmarried.
Roger Eugene Ailes (May 15, 1940 – May 18, 2017) was an American television executive and media consultant.
 He was the founder and one-time Chairman and CEO of Fox News and the Fox Television Stations Group, from which he resigned in July 2016 following allegations that he sexually harassed female colleagues.
 Ailes was a media consultant for Republican presidents Richard Nixon, Ronald Reagan, and George H. W. Bush, and for Rudy Giuliani's first mayoral campaign.
 In 2016, after he left Fox News, he became an adviser to the Donald Trump campaign, where he assisted with debate preparation.
Leslie Herbert "Les" Irwin, CBE (1 May 1898 – 28 January 1985) was an Australian politician.
 Born in Newcastle, New South Wales, he was educated at state schools and underwent military service 1916–30.
 Upon the end of his service, he became a bank manager.
 In 1963, he was selected as the Liberal candidate for the seat of Mitchell in the Australian House of Representatives.
 He was the last person born in the nineteenth century, the last person born before Federation, and the last World War I veteran elected to the House.
 He held Mitchell until his defeat in 1972.
 Irwin died in 1985.

Question: When was the person born who The Loudest Voice in the Room is about?
Answer: May 15, 1940