William Osborne is sadly one of those names that seems destined to be lost to time.
The starting point for any research is always going to be the gravestone; this is situated in the Woodlands Cemetery in Gillingham, Kent and confirms his service number, rank and regiment and the date of his death.
The service number helps confirm his first name, and that his widow was called Eliza, but without his age and confirmation of when he was married, there are too many potential Williams and Elizas/Elizabeths to confirm a definite identity.
The only thing that can be confirmed, therefore, is that William enlisted in the Middlesex Regiment at some point before April 1918, and subsequently transferred across to the Labour Corps. He passed away on 8th November 1918 at the Second Eastern General Hospital in Brighton, Sussex, having contracted pneumonia.
William Osborne lies at rest in that Gillingham Cemetery, not far from where his widow was living.