The fire service wants help to track down the surviving members of two Sheffield firefighters who lost their lives during the blitz.
Norman Elliot, aged 35, and Fredrick Parkes-Spencer, aged 36 were both firefighters with Sheffield Police Fire Brigade on the night of 12 December 1940.
Codenamed Operation Crucible by the Germans, the raids under on 12, 13 and 15 December 1940 saw hundreds of Heinkel 111, Dornier 17 and Junker 88 bombers drop many thousands of tonnes of ordnance on Sheffield over a period of nine hours.
Dozens of firefighters from across Yorkshire and surrounding cities responded to the raids.
Norman lost his life at Union Street and Fredrick was killed at Charles Street.
South Yorkshire Fire & Rescue plans to name two new meeting rooms at its Eyre Street headquarters in memory of the firefighters and would like to let their families know.
If you were related to either Norman Elliot or Fredrick Parkes-Spencer, or know someone who was, please email firstname.lastname@example.org