Family "knowledge" of such events isn't always accurate. Somebody asked me to help find out more about her father's MM, as the citation had been lost. She "knew" that it had been awarded for an action at Ypres. She was in no doubt about this.
By good luck, when the service records became available her father's record was among those that had survived. There was a wonderful bonus in the file - a letter written by her father after demob, asking when he might receive the medal. In the letter he gave the exact date of the action. It took place in ... Italy!
