Source Information History of the Isle of Man [database on-line]. Provo, UT: Operations Inc, 2005.
Original data: Bullock, H. A.. History of the Isle of Man : with a comparative view of the past and present state of society and manners : containing also biographical anecdotes of eminent persons connected with that island. London: Printed for Longman, Hurst, Rees, Orme and Brown, 1816.