Question: Who is the half-brother of the man whose mother was also known as M. Bible?

Context paragraphs:
Doris (mythology): Doris ( ; Δωρίς "bounty"), an Oceanid, was a sea nymph in Greek mythology, whose name represented the bounty of the sea.  She was the daughter of Oceanus and Tethys and the wife of Nereus.  She was also aunt to Atlas, the titan who was made to carry the sky upon his shoulders, whose mother Clymene was a sister of Doris.  Doris was mother to Nerites and the fifty Nereids, including Thetis, who was the mother of Achilles, and Amphitrite, Poseidon's wife, and mother of Triton.

YouVersion: YouVersion (also known as Bible.com or the Bible App) is an online and mobile Bible platform published for Android, iOS, Windows Phone, and many other operating systems; it also supports a variety of other platforms.  YouVersion's Bible App features 1492 Bible versions, in 1074 languages, audio Bibles for popular versions, offline capabilities, as well as over 800 Bible Plans on specific topics, portions of the Bible, the entire Bible, and devotionals.

Oh, Lady! Lady!!: Oh, Lady!  Lady!!  is a musical with music by Jerome Kern, a book by Guy Bolton and P. G. Wodehouse and lyrics by Wodehouse.  It was written for the Princess Theatre on Broadway, where it played in 1918 and ran for 219 performances.  The story concerns an engaged young man, Bill, whose ex-fiancée arrives unexpectedly on his wedding day.  Bill works to convince his old flame that he was not worthy to marry her, but his clumsy efforts do not make him look good to his new fiancée, whose mother already dislikes Bill.  A couple of crooks cause further complications.

The Divided Heart: The Divided Heart is a black-and-white British film directed by Charles Crichton and released in 1954.  The film is a drama, based on a true story of a child, whose father was a member of Slovenian Partisans executed by Nazis and whose mother was deported to Auschwitz, while little Ivan was, like other 300 babies and young children from Slovenia, whose parents were declared Banditen by Nazis, sent to Germany in a Nazi program known as Lebensborn.

Allophone (Quebec): In Quebec, an allophone is a resident, usually an immigrant, whose mother tongue or home language is neither French nor English.  The term can also be sometimes used in other parts of Canada.  The term parallels "Anglophone" (English-speaker), and "Francophone", which designate people whose mother tongues are English and French, respectively.  Native speakers of aboriginal languages are generally not treated as allophones.

Simi Sernaker: Simi Sernaker, born Simantha Sernaker in 1979 and also known as Simi Stone, is the frontwoman of the rock band Suffrajett.  Sernaker was born and raised in Woodstock, New York, by her mother Dorothy Sernaker and a Jamaican-born father, Ernest Bledsoe, whose mother traveled on the blues circuit playing piano in the south.  At seven, Sernaker took up the classical violin and at ten, was admitted to The New York Conservatory for the Arts, where she studied musical theatre, dance, and voice and all the while, continued to write songs of her own.  Upon graduating high school, she moved to New York City and pursued a degree in acting at Marymount College, while she performed in musical theater and off-Broadway plays.

The Orange and the Green: "The Orange and the Green" or "The Biggest Mix-Up" is a humorous Irish folk song about a man whose father was a Protestant ("Orange") and whose mother was a Catholic ("Green").  It describes the man's trials as the product of religious intermarriage and how "mixed up" he became as a result of such an upbringing.

Father: A father is the male parent of a child.  Besides the paternal bonds of a father to his children, the father may have a parental, legal, and social relationship with the child that carries with it certain rights and obligations.  An adoptive father is a male who has become the child's parent through the legal process of adoption.  A biological father is the male genetic contributor to the creation of the infant, through sexual intercourse or sperm donation.  A biological father may have legal obligations to a child not raised by him, such as an obligation of monetary support.  A putative father is a man whose biological relationship to a child is alleged but has not been established.  A mother's boyfriend is a man whose girlfriend has a son or daughter from a previous marriage or relationship.  A stepfather is a male who is the husband of a child's mother and they may form a family unit, but who generally does not have the legal rights and responsibilities of a parent in relation to the child.

Jon Garth Murray: Jon Garth Murray (November 16, 1954 – September 29, 1995) was the second son of late controversial activist Madalyn Murray O'Hair, the first president and founder of American Atheists, Inc., in 1963.  He was also the half-brother of the reverend William "Bill" Murray.

Madalyn Murray O'Hair: Madalyn Murray O'Hair ("née" Mays; April 13, 1919 – September 29, 1995), who also used multiple pseudonyms (her most preferred being M. Bible), was an American activist, founder of American Atheists, and the organization's president from 1963 to 1986.  She created the first issues of "American Atheist Magazine".  One of her sons, Jon Garth Murray, became the nominal president of the organization from 1986 to 1995, but she remained "de facto" president during these nine years.

Supporting paragraphs: Jon Garth Murray Madalyn Murray O'Hair
Answer: William "Bill" Murray