Question: Which author wrote political works, Katherine Neville or Ishmael Reed?

Context articles: Mumbo Jumbo (novel)
Katherine Neville (author)
The Eight (novel)
Katherine Neville, Baroness Hastings
A Gathering of the Tribes (Cultural Organization)
The Last Days of Louisiana Red
Katherine Neville, Duchess of Norfolk
Ishmael Reed
Yellow Back Radio Broke-Down
PEN Oakland

Mumbo Jumbo is a 1972 novel by African-American author Ishmael Reed.
 Literary critic Harold Bloom cited the novel as one of the 500 most important books in the Western canon.
 "Mumbo Jumbo" has remained in print for 45 years, since its first edition, and has been published in French, Italian, Spanish, Japanese, and British editions, with a Chinese translation currently in production.
Katherine Neville (born April 4, 1945) is an American author who writes adventure novels.
 Her novels include "The Eight" (1988), "A Calculated Risk" (1992), "The Magic Circle" (1998) and "The Fire" (2008), which is a sequel to "The Eight".
The Eight, published December 27, 1988, is American author Katherine Neville's debut novel.
 Compared to the works of Umberto Eco when it first appeared , it is a postmodern thriller in which the heroine, accountant Catherine Velis, must enter into a cryptic world of danger and conspiracy in order to recover the pieces of the Montglane Service, a legendary chess set once owned by Charlemagne.
Katherine Neville, Baroness Hastings (1442 – between January and 25 March 1504), was a noblewoman and a member of the powerful Neville family of northern England.
 She was one of the six daughters of Richard Neville, 5th Earl of Salisbury, and the sister of military commander Richard Neville, 16th Earl of Warwick, known to history as "Warwick the Kingmaker".
A Gathering of the Tribes is a multi cultural interdisciplinary arts organization founded by Dr. Steve Cannon at his home at 285 East third street in New York City's East Village.
 The Organization publishes a literary magazine and has now presented its fourteenth issue.
 The collective also hosted a gallery and performance space where numerous exhibitions and concerts took place with notable artists and musicians such as the Sun Ra Arkestra, Chavisa Woods, Katherine Arnoldi, John Farris, Susan Scutti, Bob Holman, Ishmael Reed, Billy Bang and David Hammons.
The Last Days of Louisiana Red (1974) is a novel written by Ishmael Reed.
 It is considered a model novel of the Black Arts Movement and contains many elements of postmodernism.
 It continues the story of the character Papa LaBas introduced in Reed's previous novel, 1972's "Mumbo Jumbo".
 The book revolves heavily around voodoo.
Katherine Neville or Catherine de Neville (born c. 1400 – died after 1483) was the eldest daughter of Ralph Neville, 1st Earl of Westmorland (1364–1425) and Lady Joan Beaufort.
 Through her mother she was a granddaughter of John of Gaunt.
Ishmael Scott Reed (born February 22, 1938) is an American poet, novelist, essayist, songwriter, playwright, editor and publisher, who is known for his satirical works challenging American political culture.
Yellow Back Radio Broke-Down, by the African-American writer Ishmael Reed, is a satirical take on the traditional Western.
 It is Ishmael Reed's second novel, following "The Freelance Pallbearers" (1967), and was first published in 1969.
 It tells the story of the Loop Garoo Kid, an African-American cowboy who practices the religion of Neohoodooism, and describes his struggle against established religion and cultural oppression.
PEN Oakland is a branch of PEN, an international literary and human rights organization.
 PEN Oakland was founded in 1989 by Ishmael Reed and co-founders Floyd Salas, Claire Ortalda and Reginald Lockett.
 PEN Oakland annually sponsors the PEN Oakland/Josephine Miles Literary Award, named for the late poet and faculty member of U.C. Berkeley’s English Department.
 The award honors well-known and emerging Bay Area and international authors for excellence in multicultural literature.
 Past and present PEN Oakland board members include: Ishmael Reed, Floyd Salas, Robert Mailer Anderson, Tony R. Rodriguez, Lucha Corpi, John Curl, Elmaz Abinader, Al Young, Jack Foley (poet), Kim Addonizio, Opal Palmer Adisa, Gerald Nicosia, Ntozake Shange and Gary Soto.
 PEN Oakland is based in Oakland, CA.