Further with regards William - In 1871 Census lived at 16 Regent Street South, Mile End Old Town, London, Middlesex and worked as a Railway Porter. In 1881 Census lived at 10 Salmen Street, Mile End Old Town, London and worked as a Railway Servant Goods Dept. In 1891 Census lived at 43 Durrington Road, Hackney, Lambeth, London and worked as a Porter. In Oct 1894 worked as an Engineer. (Possibly in 1901 Census lived at Sidney Road, Homerton NE, London and listed as a Pauper (Married & Retired Railway Porter) as William Austin aged 71)?
Registered as Married in Whitechapel, Middlesex District in July/Aug/Sep 1869 (Vol.1c Page 778). He (and Sarah Jane Blake/Biggs married on 17 Aug 1869. I have a copy of their marriage certificate with Wiliams father mentioned as Robert Austen (but could have been entered as Austin as sloppy writing) as Solicitor deceased.
Sorry, not much at all to go on.