Marjorie Gracie Leadbeater1
From 8 August 1959, her married name became Grattan.
Children of Marjorie Gracie Leadbeater and Commander John Grattan
- Henry Grattan2 b. 3 Feb 1962
- Annabelle Celia Grattan2 b. 18 Oct 1963
Henry Grattan1
Annabelle Celia Grattan1
Arthur Gerald Grattan1
He was educated at Sherborne School, Sherborne, Dorset, EnglandG.1 He gained the rank of officer in 1955 in the Royal Army Service Corps.1 He gained the rank of officer between 1955 and 1957 in the Intelligence Corps.1 He was an exporter.1 He lived in 1972 at 30 Northcburch Road, London, England.1
Children of Arthur Gerald Grattan and Suzanne Anne La Marque
- James Gerald La Marque Grattan2 b. 1959
- Frances Patricia Grattan2 b. 24 Mar 1967
John James La Marque1
Child of John James La Marque
Suzanne Anne La Marque1
From 1959, her married name became Grattan.
Children of Suzanne Anne La Marque and Arthur Gerald Grattan
- James Gerald La Marque Grattan2 b. 1959
- Frances Patricia Grattan2 b. 24 Mar 1967
James Gerald La Marque Grattan1
Frances Patricia Grattan1
William Grattan1 
Delariviere Spring1 
- [S229] Burke John and John Bernard Burke, A Genealogical and Heraldic History of the Extinct and Dormant Baronetcies of England (1841, reprint; Baltimore, Maryland, USA: Genealogical Publishing Company, 1985), page 501. Hereinafter cited as Extinct and Dormant Baronetcies of England.
