pwassy
You don't need marriage records, just the census !
Sarah is definitely a EVERITT
in the 1891 and 1901 your Sarah is stated as being born at BURES
the other Sarah (Wakeling) was born at White Colne (1891 & 1901 census)
(both Sarah's are of the same age!)
1871 census
Water Lane, Bures
Thomas Everitt head 46 Birch
Ann " wife 35 Alphamstone
John E " son 12 Bures
Harriett " daur 9 "
Fredrick " son 7 "
SARAH " daur 4 "
Alice " " 1 "
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Regards
Bryant