Sarah Bridges ...

[Merry]

I found another thread suggesting TJ Watts may have died between 1861 and 1871. The only match for that is a fair bit older than Sarah:

WATTS, THOMAS JOHN 53
GRO Reference: 1865 D Quarter in HACKNEY Volume 01B Page 316

but of course this might not be him! If he was registered without his middle name he would be lost in a crowd! Also, Sarah may have just said she was a widow in 1871 because she hadn't heard from her husband in years.

A lot of sites are reputed to have the images of marriages for All Saints Wandsworth where Sarah and TJ married in 1854, but I've not found anything. If we knew his occupation and father's details we might be able to confirm if this death is the right one. It would also be useful to see what Sarah said about her father this time.