Hi,
I see there is an Edward ROBERTSON who could be Emma's brother,
Edward ROBERTSON
Baptism: 23 Oct 1836
Father: Robert ROBERTSON, Confectioner
Mother: Mary Ann
Residence: Brompton Row
Parish or Poor Law Union: Brompton Holy Trinity
Borough: Kensington and Chelsea
I found these two in 1841,
HO107/688/16 f.7 p.8 Chelsea
Royal Hospital Chelsea
/
Elizabeth WILTSHIRE 45 School Assistant N
Emma COOPER 15 Daughter of master baker N
Ashly " 9 Son of " Y
Emma ROBERTSON 5 Step Daur Y
Edward ROBERTSON 4 " Son Y
/
A very odd household as the COOPER children seem unrelated to Elizabeth WILTSHIRE. I also can't find any WILTSHIRE/ROBERTSON marriage which would fit.
Regards,
Daisy