Heard , Barrington John (B J)

5 Sep 2026: Regiment/Unit swapped -- "Thornhill AFB" (the specific squadron) moved to Regiment; "Rhodesian Air Force" (the force-wide designation) moved to Unit, per John's decision.
Mike Sandham's research log ("List 1"), imported 16 Sep 2026, credited to The South Africa War Graves Project unless his entry says otherwise: filled Corps -- each of these was EMPTY on this record and no existing value was changed. Derived fields recomputed inline where applicable.
16 Sep 2026, ServiceNo contamination sweep: the stored ServiceNo 'PR100416' was CLEARED. It was not a reading of this man's record. PersonNumbers 39413 to 39415 -- 3 consecutive records -- all carried the identical number, which belongs to the record at the head of that run (39413, Heard, Alan David (A D)). A value repeated down an unbroken block of PersonNumbers is a forward-fill import artefact, not men who shared a service number; the pattern holds across 850 such runs on this roll and is independently confirmed by Mike Sandham's research log, which attaches such numbers to the head of the run 167 times against 6 contradictions (all examined). No replacement is guessed: this man's real service number is simply not known, and a blank field says so honestly where another man's number did not.