Question: Who wrote the book on which a musical was based which featured the song She Used to Be Mine?

Context paragraphs:
Selby Coalfield: Selby coalfield (also known as the Selby complex, or Selby 'superpit') was a large scale deep underground mine complex based around Selby, North Yorkshire, England, with pitheads at Wistow Mine, Stillingfleet Mine, Riccall Mine, North Selby Mine, Whitemoor Mine and at Gascoigne Wood Mine; all coal was brought to the surface and treated at Gascoigne Wood, being distributed onwards by rail.  The primary purpose of the pit was to supply coal for electrical power generation; much of it was used in the nearby Aire valley power stations.

I, Me, Mine: I, Me, Mine is an autobiographic work by George Harrison, published in 1980 as a hand-bound, limited edition book by Genesis Publications, with a mixture of printed text and multi-colour facsimiles of Harrison's handwritten lyrics.  It was limited to 2000 signed copies, with a foreword by Derek Taylor.  The Genesis limited edition sold out soon after publication, and it was subsequently published in hardback and paperback in black ink by W H Allen in London and by Simon & Schuster in New York.  The book was released a few weeks before the assassination of John Lennon which also happened in New York.  Lennon had taken offence at Harrison's book, telling interviewer David Sheff that "I was hurt by it ... By glaring omission in the book, my influence on his life is absolutely zilch and nil ... I'm not in the book".  Harrison, in fact, does mention Lennon several times (although not as a musical influence, which was the point of Lennon's displeasure).  "I, Me, Mine" was re-published with a new foreword from Harrison's widow, Olivia, in 2002.

Mine for Keeps: Mine for Keeps is a 1962 book by the Canadian children's author Jean Little.  At the time she wrote "Mine for Keeps", Little was teaching in a school for the disabled and she had written the book after becoming tired of reading her students books in which disabled child characters either meet deaths or recover completely (like Clara in "Heidi", or Colin in "The Secret Garden").

Archaeal Richmond Mine acidophilic nanoorganisms: Archaeal Richmond Mine acidophilic nanoorganisms (ARMAN) were first discovered in an extremely acidic mine located in northern California (Richmond Mine at Iron Mountain) by Brett Baker in Jill Banfield's laboratory at the University of California Berkeley.  These novel groups of archaea named ARMAN-1, ARMAN-2 ("Candidatus" Micrarchaeum acidiphilum ARMAN-2 ), and ARMAN-3 were missed by previous PCR-based surveys of the mine community because the ARMANs have several mismatches with commonly used PCR primers for 16S rRNA genes.  Baker "et al." detected them in a later study using shotgun sequencing of the community.  The three groups were originally thought to represent three unique lineages deeply branched within the Euryarchaeota, a subgroup of the Archaea.  However, this has been revised, based on more complete archaeal genomic tree, that they belong to a super phylum named DPANN.  The ARMAN groups now comprise deeply divergent phyla named Micrarchaeota and Parvarchaeota.  Their 16S rRNA genes differ by as much as 17% between the three groups.  Prior to their discovery all of the Archaea shown to be associated with Iron Mountain belonged to the order Thermoplasmatales (e.g., "Ferroplasma acidarmanus").

MPB mine: The MPB is a Polish off-route anti-tank mine.  It was developed by BELMA (BZE BELMA S.A.) with its partner Military Institute of Engineer Technology.  The MPB consists of a metal cylinder filled with explosives, mounted horizontally in an adjustable frame.  The mine is intended to be hidden from direct view of the intended target, off to the side of a probable vehicle route, usually a road, to attack the weaker armour on the sides and rear of a vehicle.  The mine can be triggered by either a contact fuze (MPB-ZK variant) or an influence fuze (MPB-ZN variant) based on infra-red and acoustic sensors, and is also fitted with an anti-handling device.  When used with the passive infrared fuze, an acoustic sensor detects approaching vehicles and activates the infra-red sensor, which triggers the mine at an optimal moment as the target passes.  The mine can be programmed to self-destruct after either 1, 10 or 30 days have passed.

Mk 4 mine: The Mk 4 mine or Mine G.S. Mk IV was a British anti-tank mine used during World War II.  Externally the mine has a cylindrical main body filled with explosive either TNT or Baratol.  The mine is covered by a pressure plate, which is attached to the mine body by four pins which sit in vertical slots in clips that fold up from the bottom of the mine.  The mine uses the Shear-pin based Contact Mine Fuze No.3 Mk I.  The fuze consists simply of a spring-loaded striker pin restrained by a shear pin.  Sufficient pressure on the pressure plate presses the plate down on the head of the fuze, breaking the shear wire and releasing the striker, which is driven into the detonator by the striker spring.

TM 65 mine: The TM 65 (Telamiina 65) is a circular Finnish minimum metal anti-tank blast mine.  It is broadly based on the Russian "TM-62 mine".  The mines body is made from a thin shell of fibreglass over a cast block of explosive, with a central fuze well that holds the pressure fuze.  The original "TM 65" used a "US-65" fuze as used in the "SM-65 anti-personnel mine", the later TM 65 77 uses a pressure fuze similar to the Russian "MV-5" fuze called "Painesytytin 77".

Waitress (musical): Waitress is a musical with music and lyrics by Sara Bareilles, and a book by Jessie Nelson.  Based on the 2007 film of the same name, written by Adrienne Shelly, the musical tells the story of Jenna Hunterson, a waitress in an unhappy marriage to her husband Earl.  When Jenna unexpectedly becomes pregnant she begins an affair with her gynecologist Dr. Jim Pomatter.  Looking for ways out she sees a pie contest and its grand prize as her chance.

She Used to Be Mine (Sara Bareilles song): "She Used to Be Mine" is a song written and recorded by American singer-songwriter Sara Bareilles for her fifth studio album, "" (2015), featuring songs from her stage adaptation of the 2007 film, "Waitress".  It was released to digital retailers as the lead single on September 25, 2015.

The New Breed (album): The New Breed is the third album by MC Breed.  It was released on April 27, 1993 for Wrap Records.  "The New Breed" found decent success, making it to #156 on the "Billboard" 200 and #17 on the Top R&B/Hip-Hop Albums, but the album is best known for the hit single "Gotta Get Mine" which featured Tupac Shakur.  "Gotta Get Mine" made it to #6 on the Hot Rap Singles, #96 on the "Billboard" Hot 100 and #61 on the Hot R&B/Hip-Hop Singles & Tracks.  Another single, "Tight", made it to #19 on the Hot Rap Singles.  The song "Gotta Get Mine" appeared in the 2002 Academy Award winning hip-hop film "8 Mile", starring Academy Award winning rapper Eminem.

Supporting paragraphs: She Used to Be Mine (Sara Bareilles song) Waitress (musical)
Answer: Jessie Nelson