Four or more generations of descendants of Margaret Ana Louise Harrison (1916-1999) if they are properly linked:
1. Margaret Ana Louise Harrison (1916-1999)
- 2. Robin Forlonge Patterson (1940)
- 3. Annabel Jane Patterson (living)
- 3. Johnny Patterson (living)
- 2. Ian Gordon Patterson (1946)
- 3. Linda Janette Patterson (living)
- 4. (four)
- 3. Claire Margaret Patterson (living)
- 3. Linda Janette Patterson (living)