Four or more generations of descendants of William Leslie Davidson (1850-1915) if they are properly linked:
1. William Leslie Davidson (1850-1915)
- 2. Hilary Davidson (1889-1969)
- 2. Donald Alastair Leslie Davidson (1891-1917)
- 2. Vera Marian Davidson (1893-1971)
- 2. Leopoldina Theodora Davidson (1894-1974)
- 2. Colin Keppel Davidson (1895-1943)