Complex sentence: Gerard Bromley Robert Christian (February 19,1870-c. June 1919) served as Magistrate of the British Overseas Territory of Pitcairn Island from 1910 to 1919.
Split into simpler sentences: Gerard Bromley Robert Christian (February 19,1870, Pitcairn Island-June 1919, Pitcairn Island) was a politician from Pitcairn. The was the Chief Magistrate of Pitcairn Island from 1910 to 1919.