Hi
I agree with you Jackie, Elizabeth Phoebe Rivett does look like the correct wife for Thomas Winfield. Thomas is in lodgings at 193 High Street Watford on the 1891, indexed as T Winfield, he dies in 1893 which accounts for Elizabeth being a widow on the 1901. I haven't yet been able to track Elizabeth after 1901.

However, I have discovered that Elizabeth nee Rivett has a connection to the Gristwood family in Ricky......... As we know James Goodman, son of James & Ann, married Louisa Gristwood & all the Gristwood's in Ricky are related.
Elizabeth P Rivett's parents were Benjamin & Maria nee Batchelor, they married in 1862. Maria Batchelor was the daughter of Thomas & Jane nee Gristwood. Thomas & Jane married 6 March 1842 in Ricky, 2 months before Maria was christened. Jane died in 1850 & I'm not sure what happened to Thomas but their 3 children, Maria, Elizabeth & Mary Ann are with their Grandmother Ann Batchelor in 1851 in Mill End. Indexed as Bakhlor on Anc.
So, Jane Gristwood was Elizabeth Winfield nee Rivetts grandmother.
If this was the Elizabeth Winfield present at George Goodman's death is it possible that the Gristwood connection is relevant.

Added, I can't figure out who Thomas Therd?? is on the 1881 living with the Rivett's in Watford.

Any ideas........
Maddie