There were quite a few SOE agents in the area mentioned. It is possible the officer was in the OSS. If so, they were in areas few people knew about. The story may have happened, just the location was different. It is only recently, that the SOE released any type of records at all. A lot of records are still sealed. I would imagine it would be the same for the OSS. The Governments of the US and England still does not want to put all the information out there.
I hadn’t seen your post, but I came up with a similar scenario.