Question: Which writer was Russian, James Gould Cozzens or Aleksandr Solzhenitsyn?

Context paragraphs:
Guard of Honor: Guard of Honor is a Pulitzer Prize-winning novel by James Gould Cozzens published during 1948.  The novel is set during World War II, with most of the action occurring on or near a fictional Army Air Forces base in central Florida.  The action occurs during a period of approximately 48 hours.  The novel is chapterless in form, using three progressively longer parts entitled "Thursday", "Friday" and "Saturday".  From dates on various memoranda quoted, the story takes place on September 2, 3, and 4, 1943.

The Dialogues with Solzhenitsyn: The Dialogues with Solzhenitsyn (Russian: Бесе́ды с Солжени́цыным ) is a Russian television documentary by Russian filmmaker Alexander Sokurov on Aleksandr Solzhenitsyn.  The documentary shot in Solzhenitsyn’s home shows his everyday life and covers his reflections on Russian history and literature.

Matryona's Place: Matryona's Place, ("Матрёнин двор"), sometimes translated as "Matryona's Home" (or House), is a novella written in 1959 by Aleksandr Solzhenitsyn.  First published by Aleksandr Tvardovsky in the Russian literary journal "Novy Mir" in 1963, it is Solzhenitsyn's most read short story.

The Just and the Unjust: The Just and the Unjust is a novel by James Gould Cozzens published in 1942.  Set in "Childerstown," a fictional rural town of 4000 persons, the novel is a courtroom drama of a murder trial that begins June 14, 1939, and takes three days.

Aleksandr Solzhenitsyn: Aleksandr Isayevich Solzhenitsyn ( ; Russian: Алекса́ндр Иса́евич Солжени́цын , ] ; 11 December 1918 – 3 August 2008) (often Romanized to Alexandr or Alexander) was a Russian novelist, historian, and short story writer.  He was an outspoken critic of the Soviet Union and communism and helped to raise global awareness of its Gulag forced labor camp system.  He was allowed to publish only one work in the Soviet Union, "One Day in the Life of Ivan Denisovich" (1962), in the periodical "Novy Mir".  After this he had to publish in the West, most notably "Cancer Ward" (1968), "August 1914" (1971), and "The Gulag Archipelago" (1973).  Solzhenitsyn was awarded the 1970 Nobel Prize in Literature "for the ethical force with which he has pursued the indispensable traditions of Russian literature".  Solzhenitsyn was afraid to go to Stockholm to receive his award for fear that he would not be allowed to reenter.  He was eventually expelled from the Soviet Union in 1974, but returned to Russia in 1994 after the state's dissolution.

By Love Possessed (novel): By Love Possessed is a novel written by James Gould Cozzens in the middle 1950s.  It was published on August 26, 1957, by Harcourt Brace and Company, and became a critically acclaimed best-seller.  In 1960, it was awarded the William Dean Howells Medal, an award given every five years to the best novel of the previous five years.

James Gould Cozzens: James Gould Cozzens (August 19, 1903 – August 9, 1978) was an American novelist and short story writer.

By Love Possessed (film): By Love Possessed is a 1961 American drama film distributed by United Artists.  The movie was directed by John Sturges, and written by Charles Schnee, based on the novel by James Gould Cozzens.

Doctor Bull: Doctor Bull is a 1933 American pre-Code comedy film directed by John Ford, based on the James Gould Cozzens novel "The Last Adam".  Will Rogers portrays a small-town doctor who must deal with a typhoid outbreak in the community.

The Red Wheel: The Red Wheel is a cycle of novels by Aleksandr Solzhenitsyn, retelling and exploring the passing of Imperial Russia and the birth-pangs of the Soviet Union.  Though Solzhenitsyn says he conceived the idea in 1938 and gathered notes for Part 1, "August 1914" (which is about the disastrous opening of World War I from a Russian perspective) in the weeks when he led a Red Army unit into Eastern Prussia, the location of much of that part, in 1945, it was only in early 1969 that he actually sat down to write this historical novel.  "August 1914" was finished in late 1970, submitted for publication to Soviet printing houses, but turned down.  Instead, it appeared abroad, at YMCA Press in Paris, without Solzhenitsyn's knowledge (though he gave his approval as soon as the news reached him).

Supporting paragraphs: James Gould Cozzens Aleksandr Solzhenitsyn
Answer: Aleksandr Isayevich Solzhenitsyn