Question: Buck Barrow is married to what fringe member of Bonnie and Clyde's gang born in 1911
Context: The Doberman Gang is a 1972 film about a talented animal trainer who uses a pack of Dobermans to commit a bank robbery.  The six dogs were all named after famous bank robbers.  Their names were Dillinger (John Dillinger), Bonnie (Bonnie Parker), Clyde (Clyde Barrow), Pretty Boy Floyd, Baby Face Nelson, and Ma Barker. Ralph Fults (January 23, 1911 – March 16, 1993) was a Depression-era outlaw and escape artist associated with Raymond Hamilton, Bonnie Parker and Clyde Barrow of the Barrow Gang. Henry Methvin (April 8, 1912 – April 19, 1948) was an American criminal, a bank robber, and a Depression-era outlaw.  He is best remembered as the final member of Bonnie and Clyde's gang and whose father, Ivan Methvin, was handcuffed to a tree and used his log truck to slow them down so they could shoot them to their deaths at the hands of a posse headed by Texas lawman Frank Hamer in 1934.  His role in the gang has often been misattributed to teenage gang member W.D. Jones as both men were portrayed as composite character "C.W. Moss" in the film "Bonnie and Clyde" (1967). Blanche Barrow (born Bennie Iva Caldwell; January 1, 1911 – December 24, 1988) was a fringe member of Bonnie and Clyde's gang and the wife of Clyde Barrow's brother Buck.  Brought up by her father, she had a poor relationship with her mother, who arranged for Blanche to be married to an older man.  Blanche ran away and met Buck Barrow.  He was 8 years older, and a fugitive. The Bonnie and Clyde Garage Apartment is located at 3347½ Oak Ridge Drive in Joplin, Newton County, Missouri, though it actually fronts on 34th Street.  The apartment was the location where the Barrow gang hid out after a series of robberies in Missouri and neighboring states.  After twelve days, neighbors reported suspicious behavior and on April 13, 1933, the Joplin Police Department raided the apartment.  Two of the police officers were killed by the fleeing fugitives.  Undeveloped photographs, left behind by the gang, helped the authorities eventually stop the gang.  Stolen merchandise tied the gang concretely to a robbery in Joplin during their stay there.  It was built about 1927, and is a two-story building on a poured concrete foundation.  It has a gently pitched hipped roof and exposed rafter ends in the American Craftsman style. Bonnie & Clyde is a musical with music by Frank Wildhorn, lyrics by Don Black and a book by Ivan Menchell.  The world premiere took place in La Jolla, California in November 2009.  The musical centers on Bonnie Parker and Clyde Barrow, the ill-fated lovers and outlaws whose story has been infamous since they achieved folk hero status during the Great Depression.  Wildhorn described the music as a "non-traditional score, combining rockabilly, blues and gospel music".  The La Jolla run was followed by a Sarasota, Florida engagement in 2010. Marvin Ivan "Buck" Barrow (March 14, 1903 – July 29, 1933) was a member of the Barrow Gang.  He was the older brother of the gang's leader, Clyde Barrow.  He and his wife Blanche were wounded in a gun battle with police four months after they joined up with Bonnie and Clyde.  Marvin died of his wounds. Bonnie Elizabeth Parker (October 1, 1910 – May 23, 1934) and Clyde Chestnut Barrow also known as Clyde Champion Barrow (March 24, 1909 – May 23, 1934) were American criminals who traveled the central United States with their gang during the Great Depression, robbing people and killing when cornered or confronted.  Their exploits captured the attention of the American public during the "Public Enemy Era," between 1931 and 1935.  Though known today for their dozen-or-so bank robberies, the duo most often preferred to rob small stores or rural gas stations.  The gang is believed to have killed at least nine police officers and several civilians.  The couple was eventually ambushed and killed by law officers near Sailes, Bienville Parish, Louisiana.  Their exploits were revived and cemented in American pop folklore by Arthur Penn's 1967 film "Bonnie and Clyde". William Daniel ("W.D.", "Dub", "Deacon") Jones (May 12, 1916 – August 20, 1974) was a member of the Barrow Gang, whose spree throughout the southern Midwest in the early years of the Great Depression became part of American criminal folklore.  Jones ran with Clyde Barrow and Bonnie Parker for eight and a half months, from Christmas Eve 1932 to early September 1933.  He was one of two gang members who were consolidated into the "C. W. Moss" character in the 1967 film "Bonnie and Clyde."  "Moss was a dumb kid who run errands and done what Clyde told him," he later said.  "That was me, all right." Bonnie & Clyde is a revisionist 2013 miniseries about Great Depression-era outlaws Bonnie and Clyde starring Emile Hirsch as Clyde Barrow and Holliday Grainger as Bonnie Parker.  The two-part film aired on consecutive nights, December 8 and 9, 2013, simultaneously on A&E, History, and Lifetime (all owned by A&E Networks).  The first previews for the film were released on September 23, 2013.  The series was widely criticized for its historical inaccuracies, particularly as it was aired on History.
Answer: Blanche Barrow