Question: Are Ray Wilson and Chris Ballew both American musicians?

Context paragraphs:
She (Stiltskin album): She is the second album by the band Stiltskin now led by Ray Wilson.  The project is sometimes known as Ray Wilson & Stiltskin.  The music is a fusion of diverse influences including Daft Punk, Phil Lynott, Audioslave, Metallica, David Bowie and Radiohead.

Dave Dederer: Dave Dederer (born October 5, 1964) is an American guitarist and singer best known as a member of the 2x GRAMMY-nominated, multi-platinum-selling musical group The Presidents of the United States of America.  An alumnus of Seattle, Washington's The Bush School and Brown University in Providence, Rhode Island, he founded The Presidents with fellow Bush School alumnus Chris Ballew.  He has also been a member of The Gentlemen and Loaded with Guns N' Roses bassist Duff McKagan, also a Seattle native, and Subset, a collaboration between The Presidents and Sir Mix-a-lot.

Chris and Tad: Chris and Tad (aka The Chris and Tad Show) was formed in 1998 by The Presidents of the United States of America's Chris Ballew and Young Fresh Fellows' Tad Hutchison.

13 Other Dimensions: 13 Other Dimensions was released by The Giraffes through the Seattle label My Own Planet, on CD and vinyl in 1998.  It is essentially a solo effort by Chris Ballew (ex-Presidents of the United States of America), recorded in Ballew's basement.  The album was published as being a work by a fictional band composed of Ballew's childhood stuffed animals.  Ballew's name appears nowhere on the album.

Chris Ballew: Christopher "Chris" Ballew (born May 28, 1965) is an American musician best known as the former lead singer and 'basitarist' of the alternative rock group The Presidents of the United States of America.  He also performs as a children's artist under the pseudonym Caspar Babypants.

Ray Wilson Live: Ray Wilson Live is a live album from Ray Wilson.  It was released in February 2005.

An Audience and Ray Wilson: An Audience and Ray Wilson is a live acoustic album by Ray Wilson released in 2006 prior to his reforming of Stiltskin.  The recording comes from a live performance given by Ray Wilson on 18 May 2003 in the Agnieszka Osiecka studio of Polish Radio in Warsaw.  According to the information on the sleeve, Ray Wilson "regards this performance as the best solo concert he has done to date.  The concert is a fusion of stories, humour and music and is enjoyed by a very attentive and respectful Polish audience."  The CD was made available exclusively through his website.

The Days Are Filled with Years: The Days Are Filled with Years was released by The Giraffes in 2000 (see 2000 in music) on Orange Recordings.  It is the second album as The Giraffes by The Presidents of the United States of America's Chris Ballew.  Cover art features a picture of Ballew's infant son, Augie Ballew, at the piano.

Caspar Babypants: Caspar Babypants is the stage name of children's music artist Chris Ballew, who is also widely known as the singer of The Presidents of the United States of America.

Ray Wilson (musician): Raymond Wilson (born 8 September 1968) is a Scottish musician, best known as vocalist in the post-grunge band Stiltskin, and in Genesis from 1996 to 1998.

Supporting paragraphs: Ray Wilson (musician) Chris Ballew
Answer: no