Local History has an 1975 interview with 'Billy' Collins.
From Airgale: Born Edmonton. Died Highgate (probably Sheldon Avenue, his home at the time of the interview). Airgale gives him the title 'Sir' but we can find no confirmation of this. His brother Herbert: born 28 February 1885 in Hornsey. Died December 1975 Southampton.
Credit for this entry to: Alan Patient of www.plaquesoflondon.co.uk