| Descent |
| Thomas Cassingham (Sr.) |
| John Peter Cassingham |
| John Robinson Cassingham (Sr.) |
| Harvey Atwood Cassingham |
| Russell William Cassingham |
| Dian Arlene Cassingham |
Dian Arlene Cassingham is the daughter of Russell William Cassingham and Eva. She was born in 1940 and died in 1965 at age 25.
In 1956, she married Howard Comb.
Children of Dian Arlene Cassingham and Howard Comb:
- Ralph Reid Comb
- Howard Rocky Comb