Career
Carvill first stood for Parliament at the 1880 general election, when he was a Liberal candidate in Newry, but he lost the seat by a margin of 5% to a Conservative candidate. He was re-elected in 1895 with a wide margin, and when the Irish Parliamentary Party (IPP) reunited for the 1900 general election was returned unopposed as an IPP candidate. He lost the seat at the general election in January 1906, when he stood as an Independent Nationalist, and was defeated by John Joseph Mooney, the IPP candidate and outgoing Member of Parliament for South County Dublin.