Having just finally unearthed details from the lost part of my family I have discovered my gg Grandmother was Olive Emma Adamthwate, c1877, London. Her father was a William Adamthwaite who married a Maria (both born approx. 1847 from the 1881 census). Other children according to the two censii are Lily (c1871), Alice (c1874), Rose (c1874), Myrtle (1881), Percy (c1883) and Pansy (c.1888). I do suspect Rose and Alice are the same person changing names between the census.
If anyone can help me out with tracing this line backwards or forwards at all I'd be incredibly grateful.