Question: Are James Walsh and Bill Champlin the same nationality?

Context articles: The Rhythm Dukes
Tamara Champlin
Here in My Heart (Chicago song)
Unlock the Gates
Bill Champlin
Sons of Champlin
Runaway (Bill Champlin album)
James Walsh (musician)
Gypsy (band)
Turn Your Love Around

The Rhythm Dukes was a short-lived band featuring Jerry Miller and Don Stevenson of Moby Grape, subsequently joined by Bill Champlin, of the Sons of Champlin, and later of Chicago.
Tamara Champlin is an American singer-songwriter who started her career as a session singer in Houston, Texas, later moving to Los Angeles.
 She has performed with and written for singers such as Elton John, Leon Russell, Nicky Hopkins, Andreas Carlsson, husband Bill Champlin and son Will Champlin.
 Tour Dates from 2010-2016 with Bill Champlin included California, Europe, Hawaii, Japan, South America, Kuwait and Iraq ; she is a full member of the Sons of Champlin, active in the Rhythmic Arts Project to benefit children, and the Saving K-9 Lives Charity encouraging adoption of shelter pets.
""Here in My Heart" is a 1997 song written by Glen Ballard and James Newton Howard and performed by Chicago.
 Keyboardist Bill Champlin sings lead, with bassist Jason Scheff singing the bridge.
 It was one of two new songs from the band's "The Heart of Chicago 1967-1997" CD.
 "Here in My Heart" was the group's eighth and final number one on the Billboard Adult Contemporary chart, and the track also reached #59 on the Hot 100 Airplay chart.
Unlock the Gates is the fourth and last album by the rock band Gypsy.
 Keyboardist James Walsh continued the band in various incarnations as The James Walsh Gypsy Band.
 The horn section is from the band Chicago.
William Bradford "Bill" Champlin (born May 21, 1947 in Oakland, California) is an American singer, guitarist, keyboard player, arranger, producer, and songwriter.
 His performance work is principally associated with the bands Chicago and the Sons of Champlin.
 He has won multiple Grammy Awards for songwriting.
The Sons of Champlin is an American rock band, formed in the late 1960s and from Marin County in the San Francisco-Bay area.
 They are fronted by vocalist/keyboardist/guitarist Bill Champlin, who was also a member of the rock band Chicago.
 They brought to the late 60's music scene in the Bay Area a soulful sound built around a horn section, sophisticated arrangements, philosophical themes, Bill Champlin's songwriting and blue-eyed soul singing, and Terry Haggerty's jazz-based guitar.
 They are one of the 1960s San Francisco bands, along with Jefferson Airplane, The Grateful Dead and  Moby Grape.
Runaway is an album by Bill Champlin, released on Elektra Records in 1981.
 It is notable as containing "Tonight Tonight", Champlin's major hit as a solo artist, as well as "Sara", which also achieved a degree of chart success.
James Milne Walsh (born 10 June 1980 in Wigan) is an English singer, songwriter, guitarist, pianist and frontman of the band, Starsailor.
Gypsy was an American progressive rock band from Minnesota, formed as The Underbeats (1962–1968).
 Gypsy was the house band at the Whisky a Go Go, West Hollywood, California for about eight months from September 1969 to 1970 and were known in 1970 for their US "Billboard" Hot 100 single "Gypsy Queen Part 1 and 2".
 Most of Gypsy's music was composed and written by guitarist and singer Enrico Rosenbaum.
 Drummer Bill Lordan went on to play with Sly & the Family Stone and a long career with Robin Trower.
 Keyboardist James Walsh continued the band in various incarnations as The James Walsh Gypsy Band.
"Turn Your Love Around" is a vocal pop/R&B single by George Benson.
 The song was written by Grammy winners Bill Champlin of Chicago, Steve Lukather of Toto and producer and guitarist Jay Graydon to help fill out Benson's 1981 greatest hits album, "The George Benson Collection".