There's a photo of the interior of Lydney Town Hall being used as a Red Cross hospital in WW1 at www.sungreen.co.uk/Lydney/RedCross_Hospital.htm.

I had a great aunt who nursed at Lydney Hospital - as a sister I believe - but I've yet to find anyone doing family history who knew her in that capacity. Her name was Lydia Sterrey (nee McLean) but always known as Lil. She was a Londoner but married Frank Sterrey who was a fitter at Lydney Junction. They lived at 23 Forest Road.