2nd Army Reinforcement Group (which as I understand it was composed of both RAC and RA personnel) had one member referred to as "SORA", Major Edge-Partington. Do you think it likely that that simply means "Staff Officer Royal Artillery"? e.g. from the 2 ARG WD - July 8 - Major I Edge-Partington SORA with Lt Col Tapley SEME visited 266 Forward Delivery Squadron to study possibility of converting Crusader AA tanks into 17 pr Gun Towers. This can NOT be done quickly.