See also

Beatrix PETTY-FITZMAURICE's other family: with Henry de la Poer BERESFORD (1875-1911)
Beatrix PETTY-FITZMAURICE's parents: Henry Charles Keith PETTY-FITZMAURICE (1845-1927) and Maud Evelyn HAMILTON (1850-1932)
Beatrix PETTY-FITZMAURICE's siblings: Evelyn Emily Mary PETTY-FITZMAURICE (1870-1960), Henry Wiliam Edmund PETTY-FITZMAURICE (1872-1936) and Charles George Francis Mercer Nairne PETTY-FITZMAURICE (1874-1914)

Family of Osborne de Vere BEAUCLERK and Beatrix Frances PETTY-FITZMAURICE

Husband:
Osborne de Vere BEAUCLERK (1874-1964)
Wife:
Beatrix Frances PETTY-FITZMAURICE (1877-1953)

Husband: Osborne de Vere BEAUCLERK

Name:
Osborne de Vere BEAUCLERK
Sex:
Male
Father:
-
Mother:
-
Birth:
16 Oct 1874¹
Death:
2 Mar 1964 (age 89)¹

Wife: Beatrix Frances PETTY-FITZMAURICE

Name:
Beatrix Frances PETTY-FITZMAURICE
Sex:
Female
Father:
Henry Charles Keith PETTY-FITZMAURICE (1845-1927)
Mother:
Maud Evelyn HAMILTON (1850-1932)
Birth:
25 Mar 1877²
Death:
5 Aug 1953 (age 76)²

Sources

1.: wikipedia.org.

2.: thepeerage.com.