Four or more generations of descendants of John Bernard Arbuthnot (1875-1950) if they are properly linked:
1. John Bernard Arbuthnot (1875-1950)
- 2. Irene Joan Grace Arbuthnot (1904-1997)
- 2. David George Arbuthnot (1905-1985)
- 2. Terence John Arbuthnot (1906-1995)
- 2. Bernard Kieran Charles Arbuthnot (1909-1975)
- 2. Richard Henry Myles Arbuthnot (1911-1943)
- 2. Patricia Evangeline Anne Arbuthnot (1914-1989)