Hello All, I don't know if this will end up as four separate (sticky?) threads or not but here goes: What is the Rank of Driver i/c and is there a Driver i/b? What is the Trade of Driver Mechanic DII and is there a Driver Mechanic DI? Occupational (Sub?)Class of a Driver appears to be 194.8 with and Industry Group of RM but why? Sorry if I appear to be leaping around over four differennt subjects but they're all mentioned on my Grandfathers Service record. I guess I'm asking what variations in different Ranks, Trades, Occupational Classes, and Grades existed? (Trust the Army to take a Civvy Taxi Driver and classify him 6 ways from Christmas! ) Thanks, Andrew.