To keep this current for others who may be interested.
We had:
1841 Heybridge
Mary Allwright, age 40
Thomas Allwright, 14, Miller
Frederick Allwright, 13
John Allwright, 12
Sarah Allwright, 11
Henry Allwright, 9
All b. Essex
Suggests Mary is widow in 1841.
FreeBMD has death of George Allwright
1838, Mar quarter, Maldon registration district.
Vol 12 page 124
No other details.
CP