Four or more generations of descendants of John Christopher Beaven (1869-1955) if they are properly linked:
1. John Christopher Beaven (1869-1955)
- 2. Milton Howard Beaven (1895-1896)
- 2. Olga Leone Beaven (1897-1954)
- 2. Erna Helena Beaven (1899-)
- 2. Eric Norman Beaven (1902-1985)
- 2. Walter John Beaven (1911-)
- 2. Alexander James Beaven (1912-1997)
- 2. Clyde William Beaven (1914-1987)
- 2. Geoffrey Herbert Beaven (1916-1943)