Question: Are David Coverdale and Burton C. Bell both founders or co-founders of a band?

Context articles: Come Taste the Band
Coverdale•Page
List of Whitesnake band members
Burton C. Bell
Restless Heart (Whitesnake album)
Coverdale•Page (album)
David Coverdale
White Snake (album)
Snakebite (album)
List of band members in David Coverdale's bands

Come Taste The Band is the tenth studio album by the English rock band Deep Purple, originally released in October 1975.
 It was co-produced and engineered by the band and longtime associate Martin Birch.
 It is the only Deep Purple studio record featuring Tommy Bolin, who replaced Ritchie Blackmore on guitar and is also the final of three albums to feature Glenn Hughes on bass and David Coverdale on lead vocals, before Coverdale later left to form Whitesnake.
Coverdale•Page was a musical collaboration featuring Whitesnake and former Deep Purple lead vocalist David Coverdale, and former Led Zeppelin guitarist Jimmy Page.
Whitesnake are a British hard rock band originally from Middlesbrough.
 Formed in 1978, initially as vocalist David Coverdale's backing band, the group originally featured guitarists Micky Moody and Bernie Marsden, bassist Neil Murray, drummer Dave Dowle and keyboardist Peter Solley, who released their first EP "Snakebite" in 1978.
 Solley was replaced later in the year by Coverdale's former Deep Purple bandmate Jon Lord, while the group's drummer Ian Paice replaced Dowle in 1979 after the release of "Lovehunter".
 Whitesnake was briefly put on hiatus in 1982, before returning later in the year with Mel Galley, Colin Hodgkinson and Cozy Powell in place of Marsden, Murray and Paice.
 Shortly after the recording of "Slide It In", Hodgkinson was replaced by the returning Murray, while John Sykes also joined the band; both new members featured on the US reissue of the album, which featured re-recorded tracks.
 Both Galley and Lord left the band shortly after the album's release.
Burton Christopher Bell (born February 19, 1969) is an American musician and vocalist.
 Bell is best known as co-founder and frontman of the metal band Fear Factory.
 His singing style mixes clean and shouted vocals with death growls.
Restless Heart is the ninth studio album recorded by Whitesnake.
 This was their first new studio album since 1989's "Slip of the Tongue".
 The CD remains unreleased in the US.
 This album was to be a David Coverdale solo album, but record company pressure forced it to be released under the "David Coverdale & Whitesnake" moniker.
Coverdale•Page is an album by Whitesnake lead vocalist David Coverdale and former Led Zeppelin and London session guitarist Jimmy Page (as Coverdale•Page), released by Geffen Records on 15 March 1993.
 The album was recorded at Little Mountain Sound Studios in Vancouver, Criteria Studios in Miami, Highbrow Productions in Nevada and Abbey Road Studios, London.
 Recording commenced in the fall of 1991 and concluded in early 1992.
 It was produced by Jimmy Page, David Coverdale and Canadian record producer, Mike Fraser.
David Coverdale (born 22 September 1951) is an English rock singer best known for his work with Whitesnake, a hard rock band he founded in 1978.
 Before Whitesnake, Coverdale was the lead singer of Deep Purple from 1973 to 1976, after which he established his solo career.
 A collaboration with Jimmy Page resulted in a 1993 album that was a commercial and critical success.
 In 2016, Coverdale was inducted into the Rock and Roll Hall of Fame as a member of Deep Purple, giving one of the band's induction speeches.
White Snake is the first solo album by David Coverdale, released in 1977.
 Coverdale would use the album title as the name of his future band, first known as "David Coverdale's Whitesnake" and soon afterwards shortened to Whitesnake.
Snakebite is the first official release by the British hard rock band Whitesnake.
 The original EP initially featured only four tracks and was released in the UK in June 1978 and never published in the US.
 "Snakebite" was re-released in September 1978 as a Double Extended Play containing four extra studio tracks taken from David Coverdale's second solo album "Northwinds".
 The EP sleeve is entitled "David Coverdale's Whitesnake" and features photographs of the live band in concert.
 All tracks from the original EP also were used as bonus tracks on the 2006 remaster of Whitesnake's debut studio album "Trouble".
David Coverdale is best known for his band Whitesnake.
 Whitesnake emerged when Coverdale wanted to name his backing band on tour, before becoming a device for him to promote himself with though it remained his backing band and not a band in its own right.
 Later Coverdale would return to solo work and would also work with Jimmy Page on a project.
 Aside from Coverdale himself, there was a number of other overlaps in membership of these various groups.
 To construct an accurate chronology of his backing band therefore, the line-ups for David Coverdale Band, Whitesnake and Coverdale-Page have been included.