Four or more generations of descendants of (Margaret) Jean Duff (1919) if they are properly linked:
1. (Margaret) Jean Duff (1919)
- 2. Elizabeth Mary Arbuthnot (1947)
- 2. William Reierson Arbuthnot (1950-2021)
- 3. (Thomasina) Lucy Arbuthnot (1998)
- 3. Henry ("Harry") William Arbuthnot (2011)
- 3. John ("Jack") Walter Arbuthnot (2011)
- 2. James Norwich Arbuthnot (1952)
- 3. Alexander Broadbent Arbuthnot (1986)
- 3. Katherine Rose Joste Arbuthnot (1989)
- 3. Eleanor ("Leafie") Sophie Duff Arbuthnot (1992)
- 3. Alice Tempest Wemyss Arbuthnot (1998)
- 2. Louise Victoria Arbuthnot (1954)
- 3. Rachel Alice Lancaster (1985)
- 3. Rebecca Saskia Lancaster (1987)
- 3. Tamara Louise Lancaster (1988)
- 2. Alison Jane Arbuthnot (1957)