Ten Days That Shook the World (1919) is a book by the American journalist and socialist John Reed about the October Revolution in Russia in 1917, which Reed experienced firsthand.
 Reed followed many of the prominent Bolshevik leaders closely during his time in Russia.
 John Reed died in 1920, shortly after the book was finished, and he is one of the few Americans buried at the Kremlin Wall Necropolis in Moscow, a site normally reserved only for the most prominent Soviet leaders.
John Silas "Jack" Reed (October 22, 1887 – October 17, 1920) was an American journalist, poet, and socialist activist, best remembered for his first-hand account of the Bolshevik Revolution, "Ten Days That Shook the World".
 He was married to writer and feminist Louise Bryant.
 Reed died in Russia in 1920 and is one of only three Americans buried in the Kremlin Wall Necropolis, the others being labor organizer Bill Haywood, and Charles Ruthenburg (the founder of the Communist Party USA).
Louise Bryant (December 5, 1885 – January 6, 1936) was an American feminist, political activist, and journalist best known for her sympathetic coverage of Russia and the Bolsheviks during the Russian Revolution.
 Bryant, who married writer John Reed, her second husband, in 1916, wrote about Russian leaders such as Katherine Breshkovsky, Maria Spiridonova, Alexander Kerensky, Vladimir Lenin, and Leon Trotsky.
 Her news stories, distributed by Hearst during and after her trips to Petrograd and Moscow, appeared in newspapers across the United States and Canada in the years immediately following World War I.
 A collection of articles from her first trip was published in book form as "Six Red Months in Russia" in 1918.
 During the next year, she defended the revolution in testimony before the Overman Committee, a Senate subcommittee established to investigate Bolshevik influence in the United States.
 Later in 1919, she undertook a nationwide speaking tour to encourage public support of the Bolsheviks and to denounce armed U.S. intervention in Russia.
Red Bells II (also known as "10 Days That Shook the World" and "Red Bells Part II – I Saw the Birth of the New World") is a 1983 adventure-drama film directed by Sergei Bondarchuk.
 It was coproduced by Soviet Union (where it was released as "Krasnye kolokola, film vtoroy – Ya videl rozhdenie novogo mira" and "Krasnye kolokola II"), Italy (where is known as "I dieci giorni che sconvolsero il mondo") and Mexico (where its title is "Campanas rojas II – Rusia 1917").
 It is the last of a two-part film centered on the life and career of John Reed, the revolutionary communist journalist that had already inspired Warren Beatty's "Reds".
 This chapter focuses on Reed's book "Ten Days That Shook the World".
October: Ten Days That Shook the World (Russian: Октябрь (Десять дней, которые потрясли мир) ; translit.
 "Oktyabr': Desyat' dney kotorye potryasli mir") is a 1928 Soviet silent historical film by Sergei Eisenstein and Grigori Aleksandrov.
 It is a celebratory dramatization of the 1917 October Revolution commissioned for the tenth anniversary of the event.
 Originally released as October in the Soviet Union, the film was re-edited and released internationally as Ten Days That Shook The World, after John Reed's popular book on the Revolution.
 In U.S. released by Amkino Corporation and First National (later was a subsidiary of Warner Bros.).
David Fulton "Dave" Karsner (1889–1941) was an American journalist, writer, and socialist political activist.
 Karsner is best remembered as a key member of the editorial staff of the "New York Call" and as an early biographer of Socialist Party of America leader Eugene V. Debs.
Ethel Carnie Holdsworth (1 January 1886 – December 1962), working-class writer, feminist, and socialist activist from Lancashire (also published as Ethel Carnie and Ethel Holdsworth).
 Poet, journalist, children's writer and author, Carnie Holdsworth was the first working-class woman in Britain to publish a novel and is a rare example of a female working-class novelist.
 She published at least ten novels during her lifetime.
Raoul Pantin (June 5, 1943 – January 15, 2015) was a Trinidadian journalist, editor, poet and playwright.
 He penned six plays during his career.
 Pantin survived the 1990 Jamaat al Muslimeen coup attempt and terrorist attack, in which he and other employees of the Trinidad and Tobago Television (TTT) station were held hostage for six days.
 He later chronicled his first-hand account of the coup attempt in a 163-page book, "Days of Wrath: The 1990 Coup in Trinidad and Tobago."
Reds is a 1981 American epic drama film co-written, produced, and directed by Warren Beatty.
 The picture centers on the life and career of John Reed, the journalist and writer who chronicled the Russian Revolution in his book "Ten Days That Shook the World".
 Beatty stars in the lead role alongside Diane Keaton as Louise Bryant and Jack Nicholson as Eugene O'Neill.
Max Wexler (also spelled Vexler or Wechsler, November 4, 1870 – May 14, 1917) was a Romanian socialist activist and journalist, regarded as one of the main Marxist theorist of the early Romanian workers' movement.
 Active in the first Romanian socialist party, the Romanian Social Democratic Workers' Party, he became dissatisfied with the party's passivity and its failure to openly support political rights for the Romanian Jews, initiating a separate Jewish socialist group.
 Following the party's demise, he was one of the main activists for the revival of the socialist movement in Iaşi, introducing to Marxism many future leaders of the Romanian socialist parties.
 Sympathetic to the 1917 February Revolution, he was arrested after attempting to gain the support of Russian soldiers present in the country during World War I. Wexler was assassinated in custody shortly after, with the Romanian authorities suppressing any formal enquiry into his death.

Question: John Silas "Jack" Reed, was an American journalist, poet, and socialist activist, best remembered for his first-hand account of the Bolshevik Revolution, "Ten Days That Shook the World", and he was married to writer, feminist, political activist, and journalist  Louise Bryant, she was of which nationality?
Answer: American