Question: Miracle Legion and Chevelle, have which mutual nationality?

Context articles: The Backyard (EP)
Portrait of a Damaged Family
Miracle Legion
Polaris (band)
Drenched
Mark Mulcahy
Chevelle (band)
Me and Mr. Ray
Music from The Adventures of Pete &amp; Pete
Surprise Surprise Surprise

The Backyard is the second release by the American alternative rock band Miracle Legion, released in 1984 on Rough Trade Records.
Portrait of a Damaged Family is the final full-length album by Miracle Legion, and the only recorded on The Mezzotint Label, released in 1997.
Miracle Legion is an American college rock band formed in 1983 in New Haven, Connecticut.
 They earned modest renown, especially in their native New England region, but also in the UK, where they were feted by music media such as "NME" and "Melody Maker".
Polaris is an indie rock band that was formed as a one-off musical project in the mid-1990s involving members of the New Haven indie rock band Miracle Legion.
 They were commissioned specifically to produce music for the Nickelodeon television show "The Adventures of Pete & Pete", which was later compiled into the group's first and only album.
 Nearly twenty years after the show was cancelled, Polaris re-emerged with its first tour and a cassingle of two new songs.
Drenched is the third full-length album by Miracle Legion, and the only recorded on the Morgan Creek Records label, released in 1992.
Mark Mulcahy is an American musician and front-man for the New Haven, Connecticut-based band Miracle Legion in the 1980s to mid-1990s, 2016 - present.
 The band earned modest renown, especially in their native New England region, but disbanded after a sad turn of events with their record label, Morgan Creek Records.
 Mulchahy soon formed Polaris, a house band for the mid-1990s alternative television series "The Adventures of Pete & Pete" (1993–1996).
 They are perhaps best remembered for the song "Hey Sandy" as it was featured in the opening credits of each show, and for nostalgic tunes such as "Waiting for October" and "Saturnine".
 Following the cancellation of "Pete & Pete", Mulcahy found himself playing his own shows in New York City and building up his career from a shadowy past.
 Mulcahy has opened for many notable artists including Oasis and Jeff Buckley and received homage from Radiohead frontman Thom Yorke, who dedicated a song to Mulcahy at a Boston show.
 Mark is still working on his solo career today via his own label Mezzotint.com.
Chevelle is an American alternative metal band that formed in 1995 in the Chicago suburb of Wildwood, Illinois.
 The band was originally composed of brothers: Pete Loeffler (lead vocals and guitar), Sam Loeffler (drums and percussion) and Joe Loeffler (bass and backing vocals).
 When Joe left the band in 2005, Geno Lenardo subbed-in as the bassist until he was replaced by Pete and Sam's brother-in-law, Dean Bernardini.
Me and Mr. Ray is the second full-length album by Miracle Legion, and the last recorded on the Rough Trade Records label, released in 1989.
Music from the Adventures of Pete & Pete is a studio album by the band Polaris, a one-off project involving members of the late 1980s and early 1990s band Miracle Legion.
 It features twelve songs composed by the band for the cult Nickelodeon television series, "The Adventures of Pete & Pete".
 The album remains the only full-length release by Polaris.
Surprise Surprise Surprise is the first full-length album by Miracle Legion, released in 1987.