Question: Who is older, Dave Grohl or David Vanian?

full_context: Document 1: Dave Grohl: David Eric Grohl (born January 14, 1969) is an American rock musician, guitarist, singer, drummer, songwriter, record producer, and film director. He is the former drummer of the grunge band Nirvana and the frontman and founder of the rock band Foo Fighters, of which he is the lead vocalist, rhythm and lead guitarist, and primary songwriter.
Document 2: Nirvana (band): Nirvana was an American rock band formed by singer and guitarist Kurt Cobain and bassist Krist Novoselic in Aberdeen, Washington, in 1987. Nirvana went through a succession of drummers, the longest-lasting being Dave Grohl, who joined in 1990. Despite releasing only three full-length studio albums in their seven-year career, Nirvana has come to be regarded as one of the most influential and important alternative bands in history. Though the band dissolved in 1994 after the death of Cobain, their music maintains a popular following and continues to influence modern rock and roll culture.
Document 3: List of Foo Fighters band members: Foo Fighters is an American alternative rock band formed by multi-instrumentalist and vocalist Dave Grohl in 1994. After recording the album "Foo Fighters" alone, Grohl enlisted guitarist Pat Smear, bassist Nate Mendel and drummer William Goldsmith to join the band. This lineup recorded the second Foo Fighters album, 1997's "The Colour and the Shape", although most of Goldsmith's drum recordings were removed and re-recorded by Grohl for the release, after he left the band due to creative tensions. Goldsmith was replaced by Taylor Hawkins, and Franz Stahl replaced Smear after he also departed, although he only remained in the band for a short period and did not record an album with the group. The group's third album, "There Is Nothing Left to Lose", featured Hawkins on drums and was released in 1999.
Document 4: David Vincent: David Justin Vincent (born April 22, 1965), also known as Evil D, is an American musician who is best known as the former lead vocalist and bassist for the death metal band Morbid Angel as well as the bassist for Genitorturers. His early influences are Kiss and Alice Cooper.
Document 5: Foo Fighters discography: The discography of Foo Fighters, an American rock band formed in 1994 by Dave Grohl, consists of nine studio albums, four extended plays (EPs), six video albums, and 36 singles. The current Foo Fighters line-up consists of Grohl (vocals and guitar), Taylor Hawkins (drums), Rami Jaffee (keyboard), Nate Mendel (bass), Chris Shiflett (guitar), and Pat Smear (guitar).
Document 6: Foo Fighters: Foo Fighters is an American rock band, formed in Seattle, Washington in 1994. It was founded by Nirvana drummer Dave Grohl as a one-man project following the dissolution of Nirvana after the death of Kurt Cobain. The group got its name from the UFOs and various aerial phenomena that were reported by Allied aircraft pilots in World War II, which were known collectively as "foo fighters".
Document 7: Dave Gahan: David "Dave" Gahan ( ; born David Callcott; 9 May 1962) is an English singer-songwriter, best known as the baritone lead singer of the electronic band Depeche Mode since their debut in 1980. He is also an accomplished solo artist, releasing albums in 2003 ("Paper Monsters") and 2007 ("Hourglass").
Document 8: Davey Havok: David Paden Marchand (born November 20, 1975), known professionally as Davey Havok, is the lead vocalist of the American rock band AFI, the electronic music band Blaqk Audio, hardcore band XTRMST, and new wave band Dreamcar.
Document 9: List of songs recorded by Nirvana: Nirvana was an American rock band formed by singer/guitarist Kurt Cobain and bassist Krist Novoselic in Aberdeen, Washington in 1987, with drummer Dave Grohl joining the band in 1990. Though their brief run ended following the death of Kurt Cobain in 1994, Nirvana has come to be regarded as one of the most influential and important rock bands of the modern era.
Document 10: David Vanian: Dave Vanian (born David Lett, 12 October 1956) is a rock musician and lead singer of the punk rock band The Damned. Formed in 1976 in London, The Damned were the first British punk band to release a single, an album, have a record hit the UK charts, and tour the United States. With a fluid line-up since their founding, Vanian has been the only ever-present member.
Document 11: Dave Foster: Dave Foster is an American musician who was the third drummer for the grunge rock band Nirvana. He was fired after playing only a couple of performances with the band, mostly because of his inability to attend rehearsal sessions regularly. Foster lived hours away from Kurt Cobain and bassist Krist Novoselic back in Aberdeen, Washington, which required the men to pick Foster up and bring him to the band's rehearsal space in Tacoma. Based on Cobain's own account, this made band practices complicated.
Document 12: Foo Fighters (album): Foo Fighters is the self-titled debut studio album by American hard rock band Foo Fighters, released on July 4, 1995, by Capitol Records through Dave Grohl's label Roswell. Grohl wrote and recorded the entire album himself – with the exception of a guest guitar spot by Greg Dulli – with the assistance of producer Barrett Jones at Robert Lang Studios in Seattle, Washington, in 1994. Grohl claimed he recorded the album just for fun, describing it as a cathartic experience to recover from the death of his Nirvana lead singer Kurt Cobain.
Document 13: Dave Peverett: David Jack Peverett (16 April 1943 – 7 February 2000), also known as Lonesome Dave, was an English singer and musician, best known as the original lead vocalist and rhythm guitarist of the rock band Foghat, which he founded following his tenure in Savoy Brown.
Document 14: David Johansen: David Roger Johansen (sometimes spelled "David Jo Hansen"; born January 9, 1950) is an American singer, songwriter and actor. He is best known as a member of the seminal protopunk band the New York Dolls. He is also known for his work under the pseudonym Buster Poindexter.
Document 15: Robert Smith (musician): Robert James Smith (born 21 April 1959) is an English singer, songwriter and musician. He is the lead singer, guitarist, lyricist and principal songwriter of the rock band the Cure. He is the band's only constant member since its formation in 1976. He has also played guitar in the band Siouxsie and the Banshees. Smith is a multi-instrumentalist, known for his unique stage look and distinctive voice.
ground_truth: Dave Vanian