Family: Derek Henry Jefferson / Mary Lindley Knighton (F16266)
m. Between Jul and Sep 1952
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Male
Derek Henry Jefferson
Birth 5 Feb 1923 District Edmonton 
Death 5 Oct 2013 Sheffield, , Yorkshire, England Burial Marriage Between Jul and Sep 1952 [1] District East Glamorgan [1] Father Henry Jefferson | F1641 Group Sheet Mother Ada Mary Maw | F1641 Group Sheet
Female
Mary Lindley Knighton
Birth Between Jul and Sep 1928 District Cardiff Death 2 May 2017 Sheffield, , Yorkshire, England Burial Father 2nd Lieutenant George Daniel Knighton | F27928 Group Sheet Mother Evelyn Dixon Lindley | F27928 Group Sheet
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Sources - [S118] England and Wales, Civil Registration Index: 1837-1983, (FreeBMD. England and Wales, Civil Registration Index: 1837-1983. [database online] Provo, UT: Ancestry.com, 2001. Original data: Microfilm and microfiche of the England and Wales, Civil Registration Indexes created by the General Register Office, in London, England.), GRO Reference - District E.Glamorgan - Volume 8b Page 835 (Reliability: 3).
- [S118] England and Wales, Civil Registration Index: 1837-1983, (FreeBMD. England and Wales, Civil Registration Index: 1837-1983. [database online] Provo, UT: Ancestry.com, 2001. Original data: Microfilm and microfiche of the England and Wales, Civil Registration Indexes created by the General Register Office, in London, England.), GRO Reference - District E.Glamorgan - Volume 8b Page 835 (Reliability: 3).