He served as a member of the Governor's council in 1910 Murray was elected as a Democrat to the Sixty-second and Sixty-third Congresses.

He served as a Member of Congress from March 4, 1911, until September 28, 1914, when he resigned, having been appointed postmaster of Boston.

In the Autumn of 1918, Murray contracted the Spanish flu[4] and died from pneumonia at Boston City Hospital at 11:40 on the night of September 21, 1918.

[5] Murray was interred in Holyhood Cemetery, the Chestnut Hill section of Brookline, Massachusetts.

[6] This article incorporates public domain material from the Biographical Directory of the United States Congress