Elmhirst married firstly Katherine Gordon Black, daughter of William Black, on 16 December 1930, and had two children before Katherine's death in 1965: • Roger Elmhirst (1935–1999) • Caroline Jane Elmhirst (b. 1932), who married Michael Frazer Mackie On 30 October 1968, he married
Marian Ferguson (née Montagu Douglas Scott), widow of
Colonel Andrew Henry Ferguson. Marian was the daughter of
Lord Herbert Montagu Douglas Scott and
Marie Josephine Edwards, and the granddaughter of
The 6th Duke of Buccleuch and
Lady Louisa Hamilton. From Marian's first marriage, she was the paternal grandmother of
Sarah Ferguson, and maternal great-grandmother of
Princess Beatrice of York and
Princess Eugenie of York. Together they lived at Dummer Down House, at Dummer in
Basingstoke,
Hants, her
dower estate from her first marriage. Thomas Elmhirst died at
Dummer, Hampshire, on 6 November 1982, in his 87th year. He was survived by his second wife, and his children and grandchildren from his first marriage. ==References==