up to the 12th generation
0─┬
Vida Gwen Scudds 1925 &1946 Owen Douglas Marks 1924
├─1──
Marilyn Adelle Marks 1948 &1967 Brian Edson Ivas 1947
└─2──
Robyn Priscilla Marks 1951 &1973 Martin Patrick O'Loughlin 1952
Total: 2 descendants (6 individuals with spouses)