Question: Who led the Calvary at the Battle where Major Joel H. Elliott was a casualty ?

Context paragraphs:
Fort Elliott: Fort Elliott was a United States Army post in the Texas Panhandle, operational between 1875 and 1890 and named for Major Joel H. Elliott, a casualty of the Battle of Washita River in 1868.

Joel H. Lyman: Joel H. Lyman (May 11, 1845–May 4, 1922) was a Quartermaster sergeant in the Union Army and a Medal of Honor recipient for his actions in the American Civil War.

Homer's Paternity Coot: "Homer's Paternity Coot" is the tenth episode of "The Simpsons<nowiki>'</nowiki>" seventeenth season.  It first aired on the Fox network in the United States on January 8, 2006.  Mail from forty years earlier is discovered, and a letter from Homer Simpson's mother's old boyfriend states that he is Homer's true father.  Homer sets out to find his new father, leaving Abe Simpson behind.  It was written by Joel H. Cohen and directed by Mike B. Anderson.  The episode guest stars William H. Macy and Joe Frazier as themselves, and Michael York as Homer's new father, Mason Fairbanks.

Joel Shapiro (mathematician): Joel H. Shapiro is a US mathematician, and one of the leading experts in the field of composition operators.  He is the author of the book "Composition Operators and Classical Function Theory" (ISBN  ), and the American Mathematical Society memoir "Cyclic Phenomena for Composition Operators" (Memoirs of the American Math.  Society #596, Vol.  125, 1997, pp. 1–105), with Paul Bourdon.

Clown in the Dumps: "Clown in the Dumps" is the season premiere of the twenty-sixth season of the American animated television series "The Simpsons", and the 553rd episode of the series overall.  It first aired in the United States on the Fox network on September 28, 2014, with "The Simpsons Guy", a crossover episode of "Family Guy" with "The Simpsons", airing afterwards.  This episode was dedicated in memory of Louis Castellaneta, the father of "The Simpsons" voice actor Dan Castellaneta.  It was written by Joel H. Cohen and directed by Steven Dean Moore, with Don Hertzfeldt directing a sequence in the opening titles.  Jeff Ross, Sarah Silverman and David Hyde Pierce guest starred as themselves, with Jackie Mason and Kelsey Grammer reprising their respective roles as Rabbi Krustofski and Sideshow Bob, while Maurice LaMarche voiced several minor characters.

Battle of Washita River: The Battle of Washita River (also called Battle of the Washita or the Washita Massacre) occurred on November 27, 1868 when Lt. Col. George Armstrong Custer’s 7th U.S. Cavalry attacked Black Kettle’s Southern Cheyenne camp on the Washita River (near present-day Cheyenne, Oklahoma), part of a major winter encampment of numerous Native American tribal bands.

97P/Metcalf–Brewington: 97P/Metcalf–Brewington is a periodic Jupiter-family comet originally discovered by Joel H. Metcalf in 1906 but subsequently lost.  A new observation in 1991 by Howard J. Brewington was matched to the 1906 sighting; the orbit was computed and the comet was observed again on its returns to perihelion in 2001 and 2011.

Joel H. Hubbard House: The Joel H. Hubbard House, also known as the Ferson–Butler–Satterlee Home is a historic residence in St. Charles, Illinois.  The Greek Revival structure is constructed of wood on a stone foundation with an asphalt roof.  It remains structurally similar to its original 1854 design with the exception of a sunroom addition.  Joel H. Hubbard was a carpenter who originally designed this house and lived there for at least a year.  The next owner was George Ferson, a member of the Kane County Board of Supervisors.  It was listed on the National Register of Historic Places on May 4, 2011.

Wedding for Disaster: "Wedding for Disaster" is the fifteenth episode of the twentieth season of "The Simpsons".  It originally aired on the Fox network in the United States on March 29, 2009.  In the episode, Marge and Homer's second marriage turns out to be invalid, so they decide to get married again.  Right before the remarriage, Homer goes missing, and Bart and Lisa suspect that he has been kidnapped by Sideshow Bob.  The episode was written by Joel H. Cohen and directed by Chuck Sheetz.  It features a guest appearance by Kelsey Grammer as Sideshow Bob.  Since airing, the episode has received mostly positive reviews from television critics.  It was viewed by 6.58 million viewers in its original American broadcast.

The Longest Daycare: Maggie Simpson in "The Longest Daycare", or simply The Longest Daycare, is a 2012 American traditionally animated 3D comedy short film based on the animated television series "The Simpsons".  In the film, Maggie Simpson is enrolled at a new daycare facility where she squares off with the foul-tempered Baby Gerald when she befriends a caterpillar.  The short originated with "Simpsons" producer James L. Brooks, who enlisted long-time veteran of the series, David Silverman, to direct the film.  The picture was written by producers Brooks, Al Jean, David Mirkin, writers Michael Price and Joel H. Cohen, as well as show creator Matt Groening.

Supporting paragraphs: Fort Elliott Battle of Washita River
Answer: Lt. Col. George Armstrong Custer