Husband of Mrs. A. C. van der Merwe, of Pretoria.
5 Sep 2026: Unit "21 Squadron" (a squadron, SAAF's regiment-equivalent) promoted to Regiment, per John's decision. Corps (South African Air Force) unchanged.
Col (rt) Graham du Toit Last Post 12 Sep 2026: 01504943PE Maj Willem Johannes van der Merwe, 21 Squadron, heart attack shortly after admission to 1 Military Hospital, age 37. ServiceNo +PE. Unit2 leftover Army -> Air Force. Rank/unit/age/cause already matched. Not on Bushwar same-day post. Probable duplicate stub PN 48734 (SN 01504943PA, same date) — not merged.
Mike Sandham OMISSIONS: 12 SEPTEMBER (mailed 13 Sep 2026), credited SAWGP: mail independently flags "Duplication?" for Van Der Merwe (33473/48734) — same pair already noted 12 Sep 2026 (SN 01504943PE vs 01504943PA). No new evidence; not merged.
25 Sep 2026, Unit2 service-branch sweep: the stored Secondary Unit "Air Force" was CLEARED as a duplicate. It was not a sub-unit, it was a service-branch word repeating what the Branch column already says. Secondary Unit is for sub-units -- a company, a squadron, a commando -- and this record's branch of service is unchanged at "Air Force".
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