John halkett was with the 78th Foot Regiment, he came to tasmania in 1850 aboard the "blenheim" and at some stage became a policeman, He married Mary ann Broughton and had a son Charles Broughton Halkett [ broughton is now used as a middle name] the last name then changes to Hackett. Ihave looked in the Tasmanian archives online but are unable to find much info on his past like his parents or marriage etc