Yes that's what seems to have happened.
Eliza remarried to William Maunder in 1850 and is with him in 1851, only her name is transcribed 'Elira'. The census has her birthplace as Abingdon, Berks which makes it seem highly likely that Humphrey Enoch b 1803 is her father.
EDIT: See post #11 re what I've said here, below:
Only hitch is, she doesn't have any children with her from the first marriage in 1851, but she would need at least one wouldn't she?
