Hi,
With help from you, and others, I think I have 'cracked it'. I can also now see why I could not find my way through the info, and why I had heard nothing about my grandmother, Lavinia's, family background in the past.
Lavinia's father Isaac died in 1874, and in the same year her brother Isaac was born.Her mother Agnes (nee Davies) after whom Lavina named her daughter) had two further 'partners', and in 1881 she is Agnes Howarth, then 1891, Agnes Smith, and finally a widow at 92 Bridge Street in 1901, from where Lavinia married William Kidd in 1899.
Thanks again,
Stuart