What happened to my two uncles and my aunt?

My father Frederick Thomas Webb (23 April 1901 - February 1974) had two brothers, one sister and a half- or step-sister. William was born in 1897, Albert in 1898, Ethel in 1899 and the half-/step-sister Sarah in 1896. Sarah I knew, as she lived in Streatham into her 90s. The other three we knew nothing of. My father never mentioned Ethel at all. They'd all been born in Burntwood, Chase Town, Staffordshire. Their parents both died when the children were young. All five children were put in Doctor Barnardo's Home in Stepney Causeway in the East End of London. Albert was "migrated" by Barnardo's to Canada on SS Sicilian in September 1912, arriving in Quebec. William made his own way to Canada some time after October 1912, having previously had a job in London as a lift operator. Barnardo's have no information on what became of them - and my father never saw or heard from them after they left - except that they say they know Albert was living in North Dakota some time before 1940. My father told me he was given the opportunity to be migrated, but declined. Sarah, who had suffered brain concussion and become deaf as a result of a fall when she was 5 was probably not considered "migratable" and spent her life in domestic service. Ethel also went into domestic service in Catford in 1916.

What interests me (I was born in 1943) is what became of the two brothers in North America, and whether there are cousins still living there. We believe that William and maybe Albert fought in Europe in the First World War with the Canadians.

My father got out of any schooling Barnardo's might have supplied by learning the cornet and joing the Home's brass band, which travelled the UK raising funds. On leaving the Home, he became an apprentice carriage wheelwright and then worked as a coachbuilder with Park Ward and H.J.Mulliner in London before joining Scammell Lorries Ltd in Watford, where he remained for more than 40 years until retiring in the late 1960s. We lived in Rickmansworth (4 Moneyhill Road). Before marrying my mother Edna May Clinch of Yiewsley, Middlesex, in the 1930s, he lived in Whetstone with a Mrs Shepherd, and had a successful career as an amateur footballer. He played left back for Millwall and for the Rest against England. He was selected for England to tour Germany but the tour was cancelled because Hitler came to power.

If anyone can shed any light on any of the above, I should be thrilled to hear from them.