Question: When was the American composer whose work was contained in "Spirit of the American Range" born?

Context articles: Ed Bogas
Oscar Alvarado
Steve Dorff
Spirit of the American Range
Bill Orcutt
George Hurd
Aaron Copland
Antônio Carlos Gomes
Aleksander Kolkowski
Louis Silvers

Edgar Noel "Ed" Bogas (born February 2, 1942), sometimes credited as Edward Bogas, is an American musician and composer whose work has been featured in films, animations, and video games.
Oskar Alvarado Mendoza (born in Guadalajara) is a Mexican illustrator, animator and composer whose work include the comics series Penumbra and the animated short-films Sonámbulo and Murnau the Vampire.
Stephen Dorff (born April 21, 1949) is an American songwriter and composer whose work is mainly in the field of country music.
Spirit of the American Range is a classical music album by the Oregon Symphony under the artistic direction of Carlos Kalmar, released by Dutch record label Pentatone on February 10, 2015.
 The album was recorded at the Arlene Schnitzer Concert Hall in Portland, Oregon in April 2013 and January 2014.
 It contains works by three American 20th-century composers: Walter Piston's ballet suite from "The Incredible Flutist", George Antheil's "A Jazz Symphony", and Aaron Copland's Symphony No. 3.
 The recording was the third by the orchestra under Kalmar's leadership, following the highly successful "Music for a Time of War" (2011) and "This England" (2012).
 "Spirit of the American Range" received a Grammy Award nomination for Best Orchestral Performance, and its producer, Blanton Alspaugh, was nominated for Producer of the Year, Classical.
Bill Orcutt (born February 2, 1962) is an American guitarist and composer whose work combines elements of blues, punk, and free improvisation.
George Hurd is an American composer whose work focuses primarily on electroacoustic music combining classical instrumentation and electronics.
 He has also written a substantial amount of music for solo electronics and classical chamber ensemble.
 He is based in San Francisco, CA and heads The Hurd Ensemble, a chamber group dedicated to performing his pieces.
 A large portion of his work is concert music for The Hurd Ensemble and other groups, and music for dance, most notably having collaborated with choreographer Loni Landon and LEVYdance on "Meet Me Normal " (2014) and "the murmur of yearning" for Kinetech Arts.
Aaron Copland ( ; November 14, 1900December 2, 1990) was an American composer, composition teacher, writer, and later a conductor of his own and other American music.
 Copland was referred to by his peers and critics as "the Dean of American Composers."
 The open, slowly changing harmonies in much of his music are typical of what many people consider to be the sound of American music, evoking the vast American landscape and pioneer spirit.
 He is best known for the works he wrote in the 1930s and 1940s in a deliberately accessible style often referred to as "populist" and which the composer labeled his "vernacular" style.
 Works in this vein include the ballets "Appalachian Spring", "Billy the Kid" and "Rodeo", his "Fanfare for the Common Man" and Third Symphony.
 In addition to his ballets and orchestral works, he produced music in many other genres including chamber music, vocal works, opera and film scores.
Antônio Carlos Gomes (] ; Campinas, July 11, 1836 – Belém, September 16, 1896) was the first New World composer whose work was accepted by Europe.
 The only non-European who was successful as an opera composer in Italy, during the "golden age of opera", contemporary to Verdi and Puccini and the first composer of non-European lineage to be accepted into the Classic tradition of music.
Aleksander Kolkowski (born 1959 in London) is a British musician and composer whose work combines instruments and machines from the pioneering era of sound recording and reproduction (Stroh violins, wind-up Gramophones, shellac discs and wax-cylinder Phonographs) to make live mechanical-acoustic music.
 He lives and works in London, England.
Louis "Lou" Silvers (September 6, 1889 – March 26, 1954) was an American film score composer whose work has been used in more than 250 movies.
 In 1935, he won an Academy Award for Best Original Score for "One Night of Love".