Question: Who wrote the song first recorded in 1996 that appeared on the Dixie Chicks sixth album?
Context: "Ready to Run" is a song recorded by American country music group Dixie Chicks.  It was co-written by the group's fiddler, Martie Seidel (now Martie Maguire) along with Marcus Hummon.  It was released in June 1999 as the lead-off single to the band's album "Fly", and their sixth entry on the "Billboard" Hot Country Singles & Tracks chart, reaching number two.  This song was featured on the film soundtrack for "Runaway Bride", starring Richard Gere and Julia Roberts. Court Yard Hounds is an American country music and folk duo, founded by sisters Martie Maguire and Emily Robison.  They, along with Natalie Maines, make up the Dixie Chicks.  The sisters decided to record a side project under a different name.  Court Yard Hounds, featuring Robison for the first time as lead vocalist, released a debut album for Columbia Records, the same label for which the Dixie Chicks has recorded, on May 4, 2010.  The album debuted at No. 7 on the Billboard 200 chart, initially selling 61,000 copies.  It has sold approximately 825,000 copies in the United States. "Goodbye Earl", written by Dennis Linde, is a country music song.  Initially recorded by the band Sons of the Desert for an unreleased album in the late 1990s, the song gained fame when it was recorded by the Dixie Chicks on their fifth studio album, "Fly".  After charting from unsolicited airplay in late 1999, the song was released as that album's third single in 2000, peaking at #13 on "Billboard's" Hot Country Singles & Tracks (now Hot Country Songs) charts.  The CD single includes an ironic 'B-Side' cover of "Stand By Your Man" by Tammy Wynette. "Sin Wagon" is a song written by Natalie Maines, Emily Erwin, and Stephony Smith and recorded by the Dixie Chicks for their 1999 album "Fly".  Though never released as a single, it charted as an album cut and is one of the band's most popular songs to date.  It has been featured in five tours: Fly, Top of the World, Accidents & Accusations, Eagles with Dixie Chicks and the DCX MMXVI World Tour. "Travelin' Soldier" is a song written and originally recorded by American country music artist Bruce Robison in 1996 and again, in rewritten form, in 1999.  It was later recorded by Ty England on his 1999 album, "Highways & Dance Halls".  The first rendition to be issued as a single was by the Dixie Chicks in December 2002, from their album "Home".  It became the group's sixth and final single to reach No. 1 on "Billboard" "Hot Country Singles & Tracks" (now "Hot Country Songs").  A version of the song featuring Natalie Maines of the Dixie Chicks, Bruce Robison and Robison's wife, Kelly Willis, appears on "KGSR's Broadcasts Vol.  13" album.  Aaron Lewis also recorded a cover of the song as a duet with his daughter Zoe on his 2016 album "Sinner". Court Yard Hounds is the debut studio album by American country duo the Court Yard Hounds, founded as a side project of the Dixie Chicks by sisters Emily Robison and Martie Maguire.  The album was released on May 4, 2010 via Columbia Records.  It was mainly recorded in Maguire's home studio in Austin, and co-produced with Jim Scott (who was also the Grammy-winning sound mixer/engineer on the Dixie Chicks' latest album "Taking the Long Way" and ""). Home is the sixth studio album by American country band Dixie Chicks, released in 2002 on Monument/Columbia Records.  It is notable for its acoustic bluegrass sound, which stands in contrast with their previous two country pop albums. The Original Dixie Hick is an EP released by country music parodist Cledus T. Judd in late 2003.  Tracks 1, 3, and 4 are all parodies of "Celebrity" by Brad Paisley, while track 2 is a parody of Chris Cagle's "Chicks Dig It".  All four parodies were inspired by the various Dixie Chicks controversies in 2003.  This was also his first album for Koch Entertainment after leaving Monument in 2003. "If I Fall You're Going Down with Me" is a song written by Matraca Berg and Annie Roboff, and recorded by American country music group Dixie Chicks.  It was released in February 2001 as the sixth single from their album "Fly".  The song peaked at number 3 on the U.S. country charts.  It also reached number 38 on the "Billboard" Hot 100. "Some Days You Gotta Dance" is a song written by Troy Johnson and Marshall Morgan, and recorded by American country music group Dixie Chicks.  It was released in September 2001 as the eighth and final single from their album "Fly".  The song peaked at #7 on the "Billboard" Hot Country Singles & Tracks chart in March 2002.  "Some Days You Gotta Dance" was previously recorded by Keith Urban's band, The Ranch, in 1997.  Urban plays guitar on the Dixie Chicks' rendition.
Answer: Bruce Robison