Mary Ann Rowland
- Born: Cir 1843, Glascoed, Monmouthshire
- Marriage: Henry Williams in 1862 in Pontypool Registration District, Monmouthshire 586
- Died: 16 Apr 1900, Panteg Parish, Monmouthshire aged 57 72
- Buried: Apr 1900, Mount Zion Baptist Chapel, Glascoed, Monmouthshire 72
 Noted events in her life were:
• Census: 1851, 30 Mar 1851, High House, Glascoed, Monmouthshire.
• Census, 2 Apr 1871, Twyn, Glascoed, Monmouthshire. 43
• Census: 1861, 7 Apr 1861, High House, Glascoed, Monmouthshire.
Mary married Henry Williams, son of Walter Williams and Rachel Morgan, in 1862 in Pontypool Registration District, Monmouthshire.586 (Henry Williams was born on 3 Jun 1841 in Llanvihangel Pontymoile, Monmouthshire, died on 28 Dec 1912 in Monmouthshire 72 and was buried in Mount Zion Baptist Chapel, Glascoed, Monmouthshire 72.)
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