CAN any of your readers help me bring my family tree forward?

My grandmother's name was Ivy Peacock before she married my grandfather Frederick George Stanley. Both died before 1990; until the 1960s they lived at 1 Wyevenhoe Road, Harrow.

Ivy had several siblings and step siblings; Eliza Miller married an E Kemp and had several children (no need to find out more of these).

There was a Robert F Miller (aged 25, 1911 census); Edward Peacock (aged 15, 1911 census, and a signatory at Joy's wedding in 1921/2); William Peacock (aged 17, 1911 census); and a Samuel Miller. I believe there is a connection with the railway for Samuel and Robert.

I've been told two of the family died during the First World War but know no more. If anyone can help I would be grateful.

The majority of the family was living at 97 Mayo Road, Willesden, Middlesex, according to the 1911 census.