Codd & Sillet families Suffolk UK

[ManU]

Have a confirmed birth Robert Rose 1809 Essex  father Robert mother Mary Broom and a daughter Elizabeth Rose b1824 she married George P Codd 1816-1891 in 1845, his mother was Lydia Sillet 1792-1861 father George Codd 1790-1865
The children of George P Codd and Elizabeth Rose  were all Sillet why not Codd
Cannot find out why the kids took the mothers maiden name and not Codd
any ideas please
Ray

[mckha489]

1. They liked it better than Codd 
2. Have you checked Wills. Sometimes it is a condition of an inheritance that they take on a different surname
3. They wanted to disassociate themselves from the Codd name for some reason (crime?)

[amondg]

Debenham Suffolk

George Sillett born 5 March 1815 baptized 2 April 1815 mother Lydia Sillett.

1841 census Crowfield
George Codd 50
Lydia 48
George 25
Elizabeth 21

Perhaps because he was born Sillett

[amondg]

Suffolk BTS

Lydia Sillett married George Cord (transcription)/Codd 15 May 1815.

Since they married 2 Months after George was born it's likely George Cord/Codd is his father.

ADDED
George Sillett married Elizabeth Rose Oct-Dec Quarter 1845