Two Letters to William Smithson Esq.: Earl Fitzwilliam to William Smithson Esq. re becoming Lieutenant Colonel of the South Batallion of the Corps of Leeds Volunteer Infantry, 7 Sep 1803 Earl Fitzwilliam to William Smithson Esq. re becoming Lieutenant-Colonel Commandant of the two Battalions of Leeds having been Lieutenant-Colonel Commandant in the Local Militia for the West Riding of the County of York, 10 Sep 1808 1803-1808