Back in February I wrote about the newly released Soldier’s Effects Registers on Ancestry. One of the major components of the money paid out after a soldier’s death was teh War Gratuity, since the launch of the records there’s been an interesting thread on the Great War Forum, looking at how the gratuity payments were determined, based on length of service. The prime mover of this thread, Craig, has now launched his own blog https://wargratuity.wordpress.com/ from where you can download a simple spreadsheet which will calculate an estimate for when a soldier enlisted based on the gratuity paid out, and their date of death. If they received the minimum £3 payment, then unfortunately all that can be said is that they had less than 12 months service, but even this can be helpful if you compare their number against that of men having known enlistment dates as well.
As always when downloading anything from the internet, it is sensible to ensure you have up-to-date virus protection!