Hi Gwen,
There are quite a few Ann Thorogood's died in Essex, would it be Dunmow that you want.
I have come across 4 for Dunmow, and several more for Braintree. Did you find her after 1841.
Dunmow
1843 j/f/m - Vol.12. Page. 59
1852 o/n/d - Vol.4a. Page. 19(35)
1854 j/f/m - Vol.4a. Page. 241
1862 a/n/j - Vol. 4a. Page. 213
Ain't life simple.
Steve.