My dad's maternal grandfather was Percy Percival b1862 Swanscombe Kent.Married Amy (?) and had 5 children (Percy b1885, Lilian b1891 (possibly Lilly???) Violet b1893, Elsie Florence Sarah b1894 (possibly Florence???) and Leonard b1899)
My Grandmother was Elsie Florence Sarah - married Earnest Edward Markwell.
Don't know if this links to your Lily and Florence???