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0 @[email protected] INDI
1 NAME John /Smith/
1 BIRT
2 DATE 21 AUG 2014
2 ASSO @[email protected]
3 RELA twin
Allowed by kiwitrees, but not correct GEDCOM
>>>> THIS ONE I USE

0 @[email protected] FAM
1 HUSB @[email protected]
1 WIFE @[email protected]
1 MARR
2 DATE 10 OCT 1892
2 ASSO @[email protected]
3 RELA witness
Allowed by kiwitrees, but not correct GEDCOM
>>> THIS ONE I USE

I did just Google the tag and found the definition you quote. But, as you say, the 3 versions have always had them so never knew otherwise. The one you say is not allowed (by the apps and GEDCOM), I’ve never used.

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