born June 1832–December 1833
in Llanveynoe, Herefordshire
died 7 February 1887
in Hereford, Herefordshire
I have found two LDS records for her baptism, each to parents John and Sophia Williams, one on 13 January 1833 in Clodock and Longtown (film number 1040008), and the other on 30 December 1833 in Clodock (film number 104481).
1841 census: living in Llanveynoe (as 'Maryharriet'), aged 8.
1851 census: living in Llanveynoe (as 'Harriet'), aged 17, where she is descibed as daughter and housekeeper. Born in Llanveynoe.
1871 census: living, as a widow, at Park House, St Margaret's with father, children, and nephew. Age is 36, occupation is housekeeper, and place of birth is Clodock.
1881 census: living at Kerry's Gate, Abbey Dore with husband and servant. Age is 45 and place of birth is Llanveynoe.
1887: her death (as Mary Harriet Parry) is recorded in the Family Bible: 'February 7 1887'. The death of a Mary Harriet Parry, aged 55, is recorded in Hereford district in the March quarter of 1887 (6a395).