More help needed with Eliza Hart born in all saints,hereford in c1826

Hi folks, Could anybody help with this lady. In 1841 she was living with her parents William Hart and Mary Ann in All Saints Hereford. In 1843 she had a son called William Augustus Hart, I have his birth certificate - sadly no father's name. In 1851 she was possibly living in Stoke Edith at Stoke House as a servant - a still room maid - only problem is she says she was born in Yarkhill,Hereford and not All Saints. In 1851 her son was with his grandparents in All Saints. I have looked for her on 1861,1871 and 1881 census with no success, also looked for a death for Eliza but cannot find one.

Any help would be much appreciated

Also looking for a marriage between William Hart b 1797 and Mary Ann b 1803.

Thank you for reading this.

Bergerac

More help needed with Eliza Hart born in all saints,hereford in c1826