Hi Jackie,
Found a Mary Ann Lloyd on the 1901 census, born about 1900 in Chirk, father was Joseph Lloyd, miner.
Here are the details as it seems a match apart from her middle name!
Living at Bryn ap oes, Chirk.
Joseph    Head  married aged 27, underground coal hewer, born Acrefair
Mary       Wife    married aged 28,                                         born Rhos
Joseph    Son                  aged  9,                                          born Rhos
Frank      Son                  aged  3,                                          born Poncysllte or Froncysllte?
Mary Ann daughter         aged 9 months                                born Chirk
Ref RG13 piece 2546 folio 146 page 1
Regards
Trish