Mickey Newbury's songs (encompassing a wide variety of musical genres) have been recorded by hundreds, but he's most remembered for his creation of this song, "An American Trilogy". It's a medley that's since been recorded by many (including symphony orchestras), but most notably by Elvis Presley.
Mickey was born Milton Sim Newbury, Jr. in Houston, Texas. He wrote many songs recorded by artists such as Johnny Cash, Roy Orbison, Tennessee Ernie Ford, Bill Monroe, Hank Snow, Ray Charles, Jerry Lee Lewis, Tammy Wynette, Ray Price, Don Gibson, Brenda Lee, Charlie Rich, Sammi Smith, Joan Baez, Tom Jones, Willie Nelson, Waylon Jennings, John Denver, Kenny Rogers, BB King, Linda Ronstadt, and Bobby "Blue" Bland, and many others.