About Alison Krauss and Union Station

Alison Krauss & Union Station is an American bluegrass and country band associated with singer Alison Krauss. It was initially composed of Krauss, Jeff White, Mike Harman and John Pennell. Later additions included Alison Brown, Tim Stafford, Ron Block, Adam Steffey, Barry Bales and Larry Atamanuik. In 1992, Stafford was replaced by guitar and mandolin player Dan Tyminski and in 1998, Steffey left and was replaced by Dobro player Jerry Douglas.

From Wikipedia