Hi there
Yes, appears to be aged 7 and 1871 Census shows her as 18 and a Servant, Colchester....just had a look back through my notes, I have her father as Jonathan Jolly and her mother as Elizabeth Hockley Born c1835 and they look to have married 1852?. I have got that many bits of paper at the moment lol. I am not sure of her siblings, possibly 3 brothers, Jonathan 1857, William 1858 and George 1861.
Thanks.
jo