Biography
William George Hay, 18th Earl of Erroll, was born 21 February 1801 to William Hay, 17th Earl of Erroll (1772-1819) and Alicia Eliot (-1812) and died 19 April 1846 Portman Square, Marylebone, London, England, United Kingdom of unspecified causes. He married Elizabeth FitzClarence (1801-1856) 4 December 1820 in London, England, United Kingdom.
Children
| Name | Birth | Death | Joined with |
| Ida Harriet Augusta Hay (1821-1867) | 18 October 1821 | 22 October 1867 | |
| William Harry Hay, 19th Earl of Erroll (1823-1891) | 3 May 1823 Bushy Park, Greater London, England, United Kingdom | 3 December 1891 Slains Castle, Aberdeenshire, Scotland, United Kingdom | Eliza Amelia Gore (1829-1916) |
| Agnes Georgiana Elizabeth Hay (1829-1869) | 12 May 1829 | 18 December 1869 | James Duff, 5th Earl of Fife (1814-1879) |
| Alice Mary Emily Hay (1835-1881) | |||
Footnotes (including sources)
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