See also

Isabel MANNERS's parents: John Henry Montagu MANNERS (1886-1940) and Kathleen TENNANT (1894-1989)
Isabel MANNERS's siblings: Usula Isabel MANNERS (1916-2017), Charles John Robert MANNERS (1919-1999), John Martin MANNERS ( - ) and Roger David MANNERS ( - )

Family of Thomas Loel Evelyn Bulkeley GUINNESS and Isabel Violet Kathleen MANNERS

Husband:
Thomas Loel Evelyn Bulkeley GUINNESS (1906-1988)
Wife:
Isabel Violet Kathleen MANNERS (1918-2008)
Children:
Serena Belinda Rosemary GUINNESS (1941-2020)
Status:
Divorced
Marriage:
c. 1936¹
Divorce:
1951¹

Husband: Thomas Loel Evelyn Bulkeley GUINNESS

Name:
Thomas Loel Evelyn Bulkeley GUINNESS
Sex:
Male
Father:
-
Mother:
-
Birth:
9 Jun 1906
Manhatten, New York County, NY, USA¹
Death:
31 Dec 1988 (age 82)
Houston, Harris County, TX, USA

Wife: Isabel Violet Kathleen MANNERS

Name:
Isabel Violet Kathleen MANNERS
Sex:
Female
Father:
John Henry Montagu MANNERS (1886-1940)
Mother:
Kathleen TENNANT (1894-1989)
Birth:
5 Jan 1918¹
Death:
21 Dec 2008 (age 90)¹

Child 1: Serena Belinda Rosemary GUINNESS

Name:
Serena Belinda Rosemary GUINNESS
Sex:
Female
Spouse:
Sheridan Frederick Terence HAMILTON-TEMPLETON-BLACKWOOD (1938-1988)
Birth:
25 Mar 1941
Prestwick, Ayrshire¹
Death:
26 Oct 2020 (age 79)
Belfast, Co. Antrim¹
Address: Belfast City Hospital

Sources

1.: wikipedia.org.