Career
In 1896 he became Consul General to Samoa. In 1897 his commission was extended, making him also Consul General to Tonga. In 1915, he took a position as research associate in primitive philology at the Carnegie Institution in Washington, District of Columbia While working for the Committee on Public Information during World War I, he suffered a skull fracture inflicted by an enemy spy.
Churchill was the author of:
A Princess of Fiji (1892)
The Polynesian Wanderings, Tracks of the Migration Deduced from an Examination of the Proto-Samoan Content of Efaté and other Languages of Melanesia (1910)
Beach-la-March, the Jargon or Trade Speech of the Western Pacific (1911)
Easter Island, Rapanui Speech and the Peopling of Southeast Polynesia (1912)
The Subanu, Studies of a Sub-Visayan Mountain Folk of Mindanao (1913).