til 12. kynslóðar
0─┬
Alexandra Rosemary Eva Dawkins 1941 &1961 Terence Edmund Thomas 1931
├─1━━
Trevor Terence Thomas 1961
├─2─┬
Vanessa June Thomas 1963 &1992 John Christian Sperling 1954
│ └─1──
Lisa Alexandra Sperling 1988
└─3──
Amanda Jane Thomas 1970
Alls: 4 afkomendur (7 einstaklingar með [spouses])