Question: Who was the producer for the group The Shelor Family?

Context articles: The Piano Guys
Shelor Family
Chuan Ratanarak
O-o-h Child
Bristol sessions
Miryo
Zack Loveday
Boisset Collection
Gruppo Riva
Kathy Kelly (musician)

The Piano Guys are an American musical group consisting of pianist Jon Schmidt, cellist Steven Sharp Nelson, videographer Paul Anderson, and music producer Al van der Beek.
 They gained popularity through YouTube, where in 2010 they began posting piano and cello compositions combining classical, contemporary, and rock and roll music, accompanied by professional-quality videos.
 In August 2016 the group surpassed one billion views on their YouTube channel, which at that time had nearly 5 million subscribers.
 Their first five major-label albums, "The Piano Guys", "The Piano Guys 2", "A Family Christmas", "Wonders", and "Uncharted" each reached number one on the "Billboard" Classical Albums and New Age Albums charts.
 The four group members all belong to the Mormon church and were middle-aged family men with other careers before they started the group.
The Shelor Family (also known as Dad Blackard’s Moonshiners) was an American folk music group formed in Meadows of Dan, Virginia in the 1920s.
 Their music, which was recorded during the Bristol sessions in 1927, had a profound impact on country and bluegrass music.
 The original family band included Joe Blackard (banjo, vocals), his daughter Clarice (piano, vocals), Jesse Shelor (fiddle, vocals) and Pyrhus Shelor (fiddle), and later resurfaced on an album of field recordings arranged in 1975.
Chuan Ratanarak (Thai: ชวน รัตนรักษ์) (1920–1993) was a self-made Thai businessman who built one of the largest and most powerful business empires in Thailand.
 Starting with nothing, Chuan was one of the legendary generation of Chinese merchants in Thailand to achieve success in one generation.
 By the time of his death in August 1993, age 73, Chuan was at the head of one of the three dominant business families in Thailand - the others being the Sophonpanich family and the Lamsam family - and the business group Chuan had created, the Ratanarak Group, included Thailand’s most successful terrestrial broadcaster, a major retail banking and insurance group and the country’s second largest cement producer.
 Comparing Thai and US entrepreneurs, Professor Krishnamra, head of the Sasin Business School at Thailand’s Chulalongkorn University, has said “given the size of the market and the stage of development, Chuan as an entrepreneur was comparable to the Vanderbilts or Rockefellers”.
 Chuan is the father of Krit Ratanarak and the grandfather of Chachchon Ratanarak.
"O-o-h Child" is a 1970 single recorded by Chicago soul family group the Five Stairsteps and released on the Buddah label.
 Previously, the Five Stairsteps had had peripheral success recording in Chicago with Curtis Mayfield: when Mayfield's workload precluded his continuing to work with the group they were reassigned to Stan Vincent, an in-house producer for Buddah Records, who had recently scored a Top Ten hit with the Lou Christie single "I'm Gonna Make You Mine".
 Vincent wrote the song for his son, Chuck.
 The Five Stairsteps' debut collaboration with Vincent was originally formatted with the group's rendition of "Dear Prudence" as the A-side with Vincent's original composition "O-o-h Child" as B-side.
 However, "O-o-h Child" broke out in the key markets of Philadelphia and Detroit to rise as high as #8 on the "Billboard" Hot 100 in the summer of 1970.
 The track's R&B chart impact was more muted with a #14 peak, although "O-o-h Child" is now regarded as a "soft soul" classic.
 "Billboard" ranked the record as the No. 21 song of 1970.
The Bristol Sessions are considered the "Big Bang" of modern country music.
 They were held in 1927 in Bristol, Tennessee by Victor Talking Machine Company producer Ralph Peer.
 Bristol was one of the stops on a two-month, $60,000 trip that took Peer through several major southern cities and yielded important recordings of blues, ragtime, gospel, ballads, topical songs, and string bands.
 The Bristol Sessions marked the commercial debuts of Jimmie Rodgers and the Carter Family.
 As a result of the influence of these recording sessions, Bristol has been called the "birthplace of country music".
 Since 2014, the town has been home to the Birthplace of Country Music Museum.
Jo Mi-hye (born November 2, 1981), better known by her stage name Miryo, is a South Korean rapper, songwriter and record producer.
 She is currently the rapper of girl group Brown Eyed Girls, and is a former member of rap group Honey Family.
 Miryo debuted as a soloist in 2012, after appearing as a producer in the first season of Show Me the Money.
Zachary Jackson "Zack" Loveday is a fictional character from the British Channel 4 soap opera, "Hollyoaks", played by Duayne Boachie.
 The character made his first on-screen appearance on 24 February 2015.
 The show's producer Bryan Kirkwood had created the Loveday family to reintroduce the "domestic family warmth" it had lost.
 Billed as a "close-knit family", writers also created a series of secrets they character group would be hiding upon their introduction.
 The audition process for the role of Zack was long and Boachie had various auditions, call backs and screen tests with other actors.
 Jacqueline Boatswain and Karl Collins were cast as Zack's parents Simone and Louis Loveday respectively.
 Zack is characterised as a cheeky and charming person who wants to find love.
 He is sporty and a keen football player.
Boisset Collection (formally known as Boisset Family Estates) is the US office of family-owned Boisset, La Famille des Grands Vins, France's third largest wine group, and Burgundy's largest wine producer.
 A family-owned producer and importer of wines from France, California, Italy and Canada, Boisset Family Estates is one of the Top 25 wine producers in the United States.
Gruppo Riva is an Italian steel producer.
 After the ArcelorMittal merger and the takeover of Corus by Tata Steel, the group is currently the world’s eighteenth and Europe's third largest steel producer.
 Riva Group (consisting of two companies, Riva Acciaio and Ilva) is private-owned and the whole shareholders' equity is held by the Riva family, through the financial institution "Riva FIRE" (which stands for "Finanziaria Industriale Riva Emilio").
Kathleen Ann Kelly (born 6 March 1963) is a singer, songwriter, and producer.
 Born in Leominster, Massachusetts, United States, she is the third child of the musical family group The Kelly Family, a multi-generational pop group that achieved success in Europe in the 1990s.