| Descent |
| Thomas Cassingham (Sr.) |
| John Peter Cassingham |
| John Robinson Cassingham (Sr.) |
| Harvey Atwood Cassingham |
| Russell William Cassingham |
| Robert Cassingham |
Robert Cassingham (Sr.) is the son of Russell William Cassingham and Eva. He was born in 1938.
In 1965, he married Shirley Ann Penrod in Nevada.
Children of Robert Cassingham and Shirley Ann Penrod:
- Robert Cassingham (Jr.)
- Brenda Cassingham