Find Ancestors

I am trying to find anyone connected to my grandmother's family, the Millers, who lived in East Ham and Barking, Essex. They are:-

Richard Miller (born c. 1857) in either Whitechapel or Germany.
Louise Miller (nee Coombes) b. 1863 in Devon.

and their children:-

Harry Coombes Miller b. 1884 in East Ham, Essex.
Edith Mary Miller b 1886 in East Ham. (My grandmother)
Margaret Miller, b 1888 in East Ham.
Richard Coombes Miller, b 1890 in Barking, Essex
George Coombes Miller, b 1892 in Barking.
Edward Coombes Miller, b 1894 in Barking.
Lillian J Miller, b 1998 in Barking
Grace G Miller, b 1901 in Barking

My mother, whose birth name was also Edith Mary Miller and was born in 1911 in East Ham, was adopted and I am trying to trace her natural family. They are proving quite elusive. I have managed to find out something about Margaret, but not the other siblings, and I have also had some luck tracing back with my g. grandmother, Louise. But I really need more information.

So if there is anyone out there who has a connection, or some knowledge of this family, however, tenuous, I would really love to hear from them.

Thanks very much indeed.

Susan