Question: What is birth name of the author of the novel "Diamond Girl"?

Context paragraphs:
Low vs Diamond: Low vs Diamond was an American rock band formed in 2002 by Lucas Field, Howie Diamond, and Tad Moore (birth name: James Thaddeus Moore IV) while they were students at the University of Colorado.  Following graduation, they relocated to Los Angeles, where they met up with the other two members of the band, Anthony Polcino and Jon Pancoast.  Low vs Diamond released their debut EP, "Life After Love", in February 2007, and their self-titled debut album in April 2008.

Elf (album): Elf is the first album by Ronnie James Dio's blues rock band called Elf.  Produced by Ian Paice and Roger Glover of Deep Purple, the record was released in 1972.  In this album, Dio is listed by his birth name Ronald Padavona.  Though Dio had used "Padavona" for songwriting credits on earlier singles, Dio explained in an interview in 1994 that he used his birth name on this album as a tribute to his parents so that they could see their family name on an album at least once.

Mental As Anything: Mental As Anything are an Australian new wave/pop-rock band that formed in Sydney in 1976.  Its most popular line-up (which lasted from 1977-1999) was Martin Plaza (birth name Martin Murphy) on vocals and guitar; Reg Mombassa (birth name Chris O'Doherty) on lead guitar and vocals; his brother Peter "Yoga Dog" O'Doherty on bass guitar and vocals; Wayne de Lisle (birth name David Twohill) on drums; and Andrew "Greedy" Smith on vocals, keyboards and harmonica.  Their original hit songs were generated by Mombassa, O'Doherty, Plaza and Smith, either individually or collectively; they also hit the Australian charts with covers of songs by Roy Orbison, Elvis Presley and Chuck Berry.

Gerrie (given name): Gerrie is Dutch and Afrikaans unisex given name.  It is a diminutive of Ger, itself short for Gerard.  As a birth name in the Netherlands, it is primarily feminine, peaking in popularities around 1950, but the name is more common as a nickname for men with the birth name Gerard(us) or Gerrit.

California Birth Index: The California Birth Index (CABI) is a database compiled by the California Office of Health Information and Research.  The index contains birth records of all registered births in California between 1905 and 1995.  Each record is an abstract of a person's birth certificate, including date of birth, full name, county of birth, gender, and mother's maiden name.  People who have been adopted are sometimes listed by their birth name, sometimes listed by their adopted name, sometimes by both and sometimes not listed at all.  The CABI is considered a valuable genealogy tool but is also criticized for privacy issues.  California began statewide civil registration of births on July 1, 1905.  Earlier birth records may exist in the county where the birth took place or at the church where a baptism took place.

Diamond Girl (Seals and Crofts song): "Diamond Girl" is a song by American soft rock duo Seals and Crofts, released as a single in 1973.  It is the title track of their fifth studio album, "Diamond Girl".  Like their previous top 10 hit "Summer Breeze", "Diamond Girl" also reached No. 6 on the "Billboard" Hot 100, and No. 4 on the Adult Contemporary chart.

Chesney and Wolfe: Ronald Chesney (birth name René Cadier; born 1922) and Ronald Wolfe (birth name Harvey Ronald Wolf-Lubbroff; 8 August 1922 – 18 December 2011) were British TV comedy screenwriters, best known for their popular (and most successful) 1960s and 1970s sitcoms, "The Rag Trade" (1961–63, 1977–78), "Meet the Wife" (1963–66), "On the Buses" (1969–73) and Romany Jones (1972–75).

Diamond Girl (film): Diamond Girl is a 1998 Canadian-South African romance drama television film directed by Timothy Bond and starring Jonathan Cake, Joely Collins, and Kevin Otto.  Written by Charles Lazer and based on the novel "Diamond Girl" by Diana Palmer, the film is about a young paralegal who is secretly in love with her boss, a carefree lawyer who manages his family's Napa Valley vineyard.  While he negotiates the sale of the vineyard, his high-powered attorney brother arrives from London and takes control of negotiations.  As the deal progresses, the paralegal's affections are torn between the two brothers.

Stereolizza: Stereolizza (before 2009 – Stereoliza), is an urban pop band, based in Los Angeles, California.  The core of the group is "Lizza" (birth name – Kateryna Shalayeva) – lead singer and songwriter; and "AlecZero" (birth name - Oleksiy Ginchev) – songwriter, record producer, multi-instrumentalist.

Diana Palmer (author): Susan Kyle, née Susan Eloise Spaeth (born December 11, 1946, in Cuthbert, Georgia, United States) is an award winning American writer who was well known as Diana Palmer and has published romantic novels since 1979.  She has also written romances as Diana Blayne, Katy Currie, and under her married name Susan Kyle and a science fiction novel as Susan S. Kyle.

Supporting paragraphs: Diamond Girl (film) Diana Palmer (author)
Answer: Susan Eloise Spaeth