Four or more generations of descendants of Thomas Lathrop Kennan (1827-1920) if they are properly linked:
1. Thomas Lathrop Kennan (1827-1920)
- 2. Kossuth Kent Kennan (1851-1933)
- 3. Constance Lathrop Kennan (1897-1969)
- 3. George Frost Kennan (1904-2005)
- 4. Grace Kennan (-)
- 4. Joan Kennan (-)
- 4. Christopher Kennan (-)
- 4. Wendy Kennan (-)
- 2. Chester Tullar Kennan (1857-1933)
- 2. Lea Brown Kennan (1859-1934)
- 2. Mary Brunch Kennan (1863-1942)
- 2. Charlotte Jane Kennan (1867-1956)
- 2. Thomas Lathrop Kennan (1874-1911)