| # | Children | Name | Born | Died | Father | Mother |
|---|
| 1 | | | b. 1939 | d. 1987 | John Grimston, 6th Earl of Verulam | Marjorie Ray Duncan |
| 2 | | | | | John Grimston, 6th Earl of Verulam | Marjorie Ray Duncan |
| 3 | | | | | John Grimston, 6th Earl of Verulam | Marjorie Ray Duncan |
| 4 | | | | | John Grimston, 6th Earl of Verulam | Marjorie Ray Duncan |
| 5 | | | | | John Grimston, 6th Earl of Verulam | Marjorie Ray Duncan |
1912 - 1973 (60 years)