Four or more generations of descendants of Alfred Henry Jackson (1851-1910) if they are properly linked:
1. Alfred Henry Jackson (1851-1910)
- 2. Alfred Jackson (1880-1947)
- 2. Edward Charles Jackson (1882-1959)
- 2. Catherine Sarah Jackson (1884-1922)
- 2. Christopher James Jackson (1888-1958)
- 2. George Howard Jackson (1891-?)
- 2. Emily Elizabeth Jackson (c1895-1897)
- 2. Edith Jackson (1897)