Rev. Hon. Robert Grimston1 
He graduated from Cambridge University, Cambridge, Cambridgeshire, England, with a Master of Arts (M.A.)3 He held the office of Canon of St. Albans.2 He lived at Darrowfield House, St. Albans, Hertfordshire, EnglandG.2
Children of Rev. Hon. Robert Grimston and Gertrude Mary Amelia Villiers
- Violet Gwendolen Grimston+1 d. 1984
- Joan Florence Mary Grimston+3 d. 15 Sep 1969
- Robert Villiers Grimston, 1st Baron Grimston of Westbury+3 b. 8 Jun 1897, d. 8 Dec 1979
- Reverend Edward Harbottle Grimston2 b. 22 May 1901, d. 22 Feb 1965
James Walter Grimston, 2nd Earl of Verulam 
He was educated at Harrow School, Harrow, London, England.1 He was educated at Christ Church, Oxford University, Oxford, Oxfordshire, England.1 He held the office of Member of Parliament (M.P.) (Tory) for St. Albans between 1830 and 1831.1 He held the office of Member of Parliament (M.P.) (Tory) for Newport Cornwall between 1831 and 1832.1 He held the office of Member of Parliament (M.P.) (Tory) for Hertfordshire between 1832 and 1845.1 He succeeded as the 5th Viscount Grimston [I., 1719] on 17 November 1845.1 He succeeded as the 2nd Viscount Grimston [U.K., 1815] on 17 November 1845.1 He succeeded as the 2nd Earl of Verulam [U.K., 1815] on 17 November 1845.1 He succeeded as the 5th Baron Dunboyne, co. Meath [I., 1719] on 17 November 1845.1 He succeeded as the 3rd Baron Verulam of Gorhambury, co. Hertford [G.B., 1790] on 17 November 1845.1 He succeeded as the 9th Baronet Luckyn, of Little Waltham, Essex [E., 1629] on 17 November 1845.1 He held the office of Lord-Lieutenant for Hertfordshire between 1846 and 1892.1 He gained the rank of Lieutenant-Colonel between 1847 and 1864 in the South Hertfordshire Yeomanry Cavalry.1 He held the office of a Lord-in-Waiting between 1858 and 1859.1 He was president of the Camden Society in 1873.1
Children of James Walter Grimston, 2nd Earl of Verulam and Elizabeth Joanna Weyland
- Lady Harriot Elizabeth Grimston1 b. c 1845, d. 15 Aug 1888
- Lady Jane Grimston1 b. 12 Dec 1848, d. 2 Nov 1920
- James Walter Grimston, 3rd Earl of Verulam+1 b. 11 May 1852, d. 11 Nov 1924
- Commander Hon. William Grimston1 b. 7 Jan 1855, d. 10 May 1900
- Lady Maud Grimston+2 b. c 1857, d. 3 Sep 1929
- Rev. Hon. Robert Grimston+2 b. 18 Apr 1860, d. 8 Jul 1928
Elizabeth Joanna Weyland 
Her married name became Grimston. After her marriage, Elizabeth Joanna Weyland was styled as Countess of Verulam on 17 November 1845.
Children of Elizabeth Joanna Weyland and James Walter Grimston, 2nd Earl of Verulam
- Lady Harriot Elizabeth Grimston1 b. c 1845, d. 15 Aug 1888
- Lady Jane Grimston1 b. 12 Dec 1848, d. 2 Nov 1920
- James Walter Grimston, 3rd Earl of Verulam+1 b. 11 May 1852, d. 11 Nov 1924
- Commander Hon. William Grimston1 b. 7 Jan 1855, d. 10 May 1900
- Lady Maud Grimston+1 b. c 1857, d. 3 Sep 1929
- Rev. Hon. Robert Grimston+1 b. 18 Apr 1860, d. 8 Jul 1928
- [S37] BP2003 volume 3, page 4002. See link for full details for this source. Hereinafter cited as. [S37]
Major Richard Weyland1
Child of Major Richard Weyland
- Elizabeth Joanna Weyland+1 d. 5 Jul 1886
- [S37] BP2003 volume 3, page 4002. See link for full details for this source. Hereinafter cited as. [S37]
James Walter Grimston, 3rd Earl of Verulam 
He was educated at Harrow School, Harrow, London, England.1 He gained the rank of Lieutenant between 1870 and 1878 in the 1st Life Guards.1 He gained the rank of Honorary Major in the Hertfordshire Yeomanry Cavalry.1 He held the office of Member of Parliament (M.P.) (Conservative) for St. Albans between 1885 and 1892.1 He held the office of Justice of the Peace (J.P.) for Hertfordshire.1 He succeeded as the 6th Baron Dunboyne, co. Meath [I., 1719] on 27 July 1895.1 He succeeded as the 6th Viscount Grimston [I., 1719] on 27 July 1895.1 He succeeded as the 3rd Viscount Grimston [U.K., 1815] on 27 July 1895.1 He succeeded as the 4th Baron Verulam of Gorhambury, co. Hertford [G.B., 1790] on 27 July 1895.1 He succeeded as the 10th Baronet Luckyn, of Little Waltham, Essex [E., 1629] on 27 July 1895.1 He succeeded as the 3rd Earl of Verulam [U.K., 1815] on 27 July 1895.1
Children of James Walter Grimston, 3rd Earl of Verulam and Margaret Frances Graham
- Lady Helen Grimston+2 b. 1879, d. 7 Oct 1947
- James Walter Grimston, 4th Earl of Verulam+1 b. 17 Apr 1880, d. 29 Nov 1949
- Lady Hermione Grimston+2 b. 1881, d. 3 Apr 1924
- Lady Aline Grimston+1 b. 1883
- Lady Elizabeth Grimston+1 b. 1885, d. 1975
- Lady Sibyl Grimston+1 b. 1887, d. 1 Aug 1968
- Lady Vera Grimston+1 b. 1890
Margaret Frances Graham1 
From 1875, her married name became Mackintosh. From 30 April 1878, her married name became Grimston. After her marriage, Margaret Frances Graham was styled as Countess of Verulam on 27 July 1895.
Child of Margaret Frances Graham and Alexander Aeneas Mackintosh, 27th of Mackintosh
- Eva Hermione Mackintosh+2 b. May 1876, d. 9 Jun 1934
Children of Margaret Frances Graham and James Walter Grimston, 3rd Earl of Verulam
- Lady Helen Grimston+2 b. 1879, d. 7 Oct 1947
- James Walter Grimston, 4th Earl of Verulam+2 b. 17 Apr 1880, d. 29 Nov 1949
- Lady Hermione Grimston+2 b. 1881, d. 3 Apr 1924
- Lady Aline Grimston+2 b. 1883
- Lady Elizabeth Grimston+2 b. 1885, d. 1975
- Lady Sibyl Grimston+2 b. 1887, d. 1 Aug 1968
- Lady Vera Grimston+2 b. 1890
Mary Margaret Lucy Hope1
Mary Margaret Lucy Hope usually went by her middle name of Margaret.1 From 1978, her married name became Baillie.1 She lived in 2003 at Allanbank, Lauder, Berwickshire, ScotlandG.1
Children of Mary Margaret Lucy Hope and Richard Simon Gucewicz-Baillie
- Alexander Simon Baillie1 b. 1982
- Edward George Baillie1 b. 1985
- [S37] BP2003 volume 2, page 2357. See link for full details for this source. Hereinafter cited as. [S37]
Commander Hon. William Grimston1 
He gained the rank of Commander in the Royal Navy.1
- [S37] BP2003 volume 3, page 4002. See link for full details for this source. Hereinafter cited as. [S37]
Lady Harriot Elizabeth Grimston1 
Her married name became Poore. She was Lady-in-Waiting to HI and RH The Duchess of Edinburgh.1
- [S37] BP2003 volume 3, page 4002. See link for full details for this source. Hereinafter cited as. [S37]
Maj.-Gen. Francis Harwood Poore1 
He was Equerry to HRH The Duke of Edinburgh.1 He gained the rank of Major-General in the Royal Marine Artillery.1
- [S37] BP2003 volume 3, page 4002. See link for full details for this source. Hereinafter cited as. [S37]