Found the Peter Hackett that Allan mentioned, (I assume the "f" are s)
Leeds Intelligencer - Tuesday 22 October 1765
Saturday fe'nnight the 44th regiment (Gem. Abercrombie's) landed at Cork from on board the tranfports from Quebec. They left Ireland under the command of Sir Peter Hackett, in January 1755 and loft their Colonel, &c, &c. in the remarkable defeat of Gen. Braddock on the Ohio.