Things were that casual throughout '' The Wainwright Family & Friends Christmas Show , '' where Rufus and his sister , Martha Wainwright , took over an annual event that used to be headlined by two songwriters from the previous generation : his mother , Kate McGarrigle , and her sister Anna .
Kate McGarrigle /people/person/children Martha Wainwright
NNS VBD IN JJ IN '' DT NNP NNP CC NNPS NNP NNP , '' WRB NNP CC PRP$ NN , NNP NNP , VBD RP DT JJ NN WDT VBD TO VB VBN IN CD NNS IN DT JJ NN : PRP$ NN , NNP NNP , CC PRP$ NN NNP .
Kate McGarrigle
PERSON
Martha Wainwright
PERSON
/people/person/children