| Descent |
| Thomas Cassingham (Sr.) |
| James Cassingham |
| James Wesley Cassingham |
| Mary Dell (Cassingham) Lyon |
| Kenneth Cassingham Lyon |
| Julia Kathryn (Lyon) Cross |
| Robert Patterson Cross IV |
Robert Patterson Cross IV is the son of Julia Kathryn Lyon and Robert Patterson Cross III. He was born in 1961 in Illinois.
- He married (1) Wendy Meyer. This marriage ended in divorce.
- He married (2) Charo Escalante. This marriage ended in divorce.
Child of Robert Patterson Cross IV and Wendy Meyer:
- Brigitte Cross was born in 1981. In 2006, she married Lucus Lyons.
Child of Robert Patterson Cross IV and Charo Escalante:
- Raquel Cross was born in 1994.