Martha Elenor Maguire is an American musician who is a founding member of the country band the Chicks and the country bluegrass duo Court Yard Hounds. She won awards in national fiddle championships while still a teenager. Maguire is accomplished on several other instruments, including the mandolin, viola, double bass and guitar. She has written and co-written a number of the band's songs, some of which have become chart-topping hits. She also contributes her skills in vocal harmony and backing vocals, as well as orchestrating string arrangements for the band.

Court Yard Hounds were an American country music and folk duo, founded by sisters Martie Maguire and Emily Robison. They, along with Natalie Maines, make up The Chicks, formerly 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.