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

Context articles: Poco: The Songs of Richie Furay
Last Time Around
Poco
Richie Furay
Jim Morrison
Inamorata (album)
Souther–Hillman–Furay Band
The Jim Morrison Triptych
United States nationality law
Keeping the Legend Alive

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.
Last Time Around is the third and final album by folk rock band Buffalo Springfield.
 Released 1968, it featured Neil Young, Stephen Stills, Richie Furay, Dewey Martin, Bruce Palmer, and Jim Messina, who also worked as producer and a recording engineer.
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.
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.
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.
Inamorata is the 18th album by the country rock band Poco.
 Featuring guest spots by former members Timothy B. Schmitt, Richie Furay and George Grantham (the only member missing from the classic years line up was Jim Messina), this would be the last album that the band would record for Atlantic Records.
 After this the original line up (Richie Furay, Rusty Young, Jim Messina, Randy Meisner and George Grantham) would reform for the 1989 release "Legacy".
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.
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.
The United States nationality law is a uniform rule of naturalization of the United States set out in the Immigration and Nationality Act of 1952, enacted under the power of Article I, section 8, clause 4 of the United States Constitution (also referred to as the Nationality Clause), which reads: Congress shall power - "To establish a uniform Rule of Naturalization..." The 1952 Act sets forth the legal requirements for the acquisition of, and divestiture from, American nationality.
 The requirements have become more explicit since the ratification of the Fourteenth Amendment to the Constitution, with the most recent changes to the law having been made by Congress in 2001.
Keeping the Legend Alive is the 22nd album and 4th live album by the country rock band Poco.
 It was re-released in 2006 under the title "Alive In The Heart Of The Night."
 It includes original members Richie Furay, *George Grantham and Rusty Young, Paul Cotton who replaced Jim Messina in 1970 and Jack Sundrud a member since the 1990s (See concert poster at http://www.angelfire.com/rock3/deliverin/belcourt.htm).