Question: Are Jim Morrison and Richie Furay both of American nationality?

full_context: Document 1: Richie Furay: Paul Richard "Richie" Furay (born May 9, 1944) is an American singer, songwriter, and Rock & Roll Hall of Fame member who is best known for forming the bands Buffalo Springfield with Stephen Stills, Neil Young, Bruce Palmer, and Dewey Martin, and Poco with Jim Messina, Rusty Young, George Grantham and Randy Meisner. His best known song (originally written during his tenure in Buffalo Springfield, but eventually performed by Poco, as well) was "Kind Woman", which he wrote for his wife, Nancy.
Document 2: Souther–Hillman–Furay Band: The Souther Hillman Furay Band (SHF) was a country rock supergroup led by singer-songwriters Richie Furay (Buffalo Springfield, Poco), Chris Hillman (The Byrds, The Flying Burrito Brothers, Manassas), and J.D. Souther (Longbranch Pennywhistle, noted songwriter for Linda Ronstadt and the Eagles). The band recorded two albums during the 1970s before breaking up due to disagreements between the members.
Document 3: Jim Sullivan (singer-songwriter): James Anthony Sullivan (August 13, 1940 – disappeared March 6, 1975) was an American singer-songwriter and guitarist who released two albums before he disappeared without a trace in New Mexico.
Document 4: Jim &quot;Dandy&quot; Mangrum: James Mangrum (born March 30, 1948), better known as Jim "Dandy" Mangrum, is the lead singer and frontman for the American Southern rock band Black Oak Arkansas. He is noted for his raspy voice, long hair, and wild, sexually-explicit stage antics which sometimes included miming sex with a washboard which he often uses to accompany his singing. His stage persona is credited as having been a major influence on Van Halen vocalist David Lee Roth.
Document 5: Poco: The Songs of Richie Furay: Poco: The Songs of Richie Furay is a compilation album consisting of songs by Richie Furay during his tenure with the band Poco, released in 1980.
Document 6: Jim Messina (musician): James Melvin Messina (born December 5, 1947) is an American musician, songwriter, singer, guitarist, recording engineer and record producer. He was a member of the folk rock group Buffalo Springfield, a founding member of the country rock pioneer Poco, and half of the soft rock duo Loggins and Messina with Kenny Loggins.
Document 7: Jimi Hendrix: James Marshall "Jimi" Hendrix (born Johnny Allen Hendrix; November 27, 1942 – September 18, 1970) was an American rock guitarist, singer, and songwriter. Although his mainstream career spanned only four years, he is widely regarded as one of the most influential electric guitarists in the history of popular music, and one of the most celebrated musicians of the 20th century. The Rock and Roll Hall of Fame describes him as "arguably the greatest instrumentalist in the history of rock music".
Document 8: The Jim Morrison Triptych: The Jim Morrison Triptych is an oil painting by American artist T. E. Breitenbach (best known for his painting "Proverbidioms"). It is a so-called "lost" collaboration with Jim Morrison of The Doors, intended for use on Morrison's "An American Prayer" album, and completed shortly before Morrison's death.
Document 9: The Doors (film): The Doors is a 1991 American biographical film about the 1960–70s rock band of the same name which emphasizes the life of its lead singer, Jim Morrison. It was directed by Oliver Stone, and stars Val Kilmer as Morrison and Meg Ryan as Pamela Courson (Morrison's companion). The film features Kyle MacLachlan as Ray Manzarek, Frank Whaley as Robby Krieger, Kevin Dillon as John Densmore, and Kathleen Quinlan as Patricia Kennealy.
Document 10: Jimi Jamison: Jimmy Wayne "Jimi" Jamison (August 23, 1951 – September 1, 2014) was an American musician, singer, and songwriter. He had previously been the frontman of the platinum-selling rock band Survivor between 1984–89, 2000–06 and from 2011 until his death. Jamison is also known for writing and performing "I'm Always Here", the theme song for the TV series "Baywatch".
Document 11: Buffalo Springfield: Buffalo Springfield was an American rock band active from 1966 to 1968 containing Stephen Stills, Neil Young, and Richie Furay, which released three albums, and several singles including "For What It's Worth". The band combined elements of folk and country music with British invasion and psychedelia influences, and, along with the Byrds, were part of the early development of the folk rock genre.
Document 12: Jim Morrison: James Douglas Morrison (December 8, 1943 – July 3, 1971) was an American singer, songwriter, and poet, best remembered as the lead singer of the Doors. Due to his poetic lyrics, distinctive voice, wild personality, performances, and the dramatic circumstances surrounding his life and early death, Morrison is regarded by both music critics and fans as one of the most iconic and influential frontmen in rock music history.
Document 13: Poco: Poco is an American country rock band originally formed by Richie Furay, Jim Messina and Rusty Young. Formed following the demise of Buffalo Springfield in 1968, Poco was part of the first wave of the West Coast country rock genre. The title of their first album, "Pickin' Up the Pieces", is a reference to the break-up of Buffalo Springfield. Throughout the years Poco has performed in various groupings, and is still active.
Document 14: Joey Ramone: Jeffrey Ross Hyman (May 19, 1951 – April 15, 2001), known professionally as Joey Ramone, was an American musician and singer-songwriter, lead vocalist of the punk rock band the Ramones. Joey Ramone's image, voice, and tenure as frontman of the Ramones made him a countercultural icon.
Document 15: Neil Young: Neil Percival Young, {'1': ", '2': ", '3': ", '4': "} (born November 12, 1945), is a Canadian singer-songwriter, musician, producer, director and screenwriter. After embarking on a music career in the 1960s, he moved to Los Angeles, where he formed Buffalo Springfield with Stephen Stills, Richie Furay and others. Young had released two solo albums by the time he joined Crosby, Stills & Nash in 1969, in addition to two as a member of Buffalo Springfield. From his early solo albums and those with his backing band Crazy Horse, Young has recorded a steady stream of studio and live albums, sometimes warring with his recording company along the way.
ground_truth: yes