The Duel originated in a difference of opinion between Sir J. Piers and Mr. Meredith, relative to a bet at a Dinner, on the 24th of December 1806. Mr. Meredith was afterwards killed in a duel by Mr. Boys, in a field near Mount Murray, and the body left in the field: Boys fled.
see http://www.ee.surrey.ac.uk/Contrib/manx/manxsoc/msvol24/p097.htm
maybe I will get a copy of the broadsheets from Manx Mus and put on my website when there next week