| Descent |
| Thomas Cassingham (Sr.) |
| Ford Cassingham |
| George Washington Cassingham |
| Bessie Alberta (Cassingham) Van Druff |
| Jean Frances (Van Druff) Keas |
| Richard William Keas |
Richard William Keas is the son of Jean Frances Van Druff and Richard B. Keas. He was born in 1949 in Colorado.
- He married (1) Lynn Duvall.
- About 1969, he married (2) Dana Marjean Krisle. She was born in 1949 in Kansas.
Children of Richard William Keas and Dana Marjean Krisle:
- Michele J. Keas was born in 1971.
- Dana Nicole Keas was born in 1975.