Lancaster Mk.X KB993 No.408 Squadron, RCAF, crashed 18th May 1945 on James’ Thorn close to Higher Shelf Stones
| Anthony Arthur Clifford | Flying Officer RCAF | Pilot | Killed |
| Kenneth McIvor | Flying Officer RCAF | Flight Engineer | Killed |
| David Fehrman | Flying Officer RCAF | Bomb Aimer | Killed |
| Michael Cecil Cameron | Warrant Officer RCAF | Wireless Operator | Killed |
| Clarence Halvorson | Flight Sergeant RCAF | Air Gunner | Killed |
| Leslie Claude Hellekson | Flight Sergeant RCAF | Air Gunner | Killed |
The aircraft was flying from RAF Linton-on-Ouse and had earlier been carrying out bumps and circuits but the crew became tired of this and decided to fly around the local area. As it became dark the crew became disorientated and eventually ended up circling Glossop. The aircraft was observed flying into the hillside at 10:10pm.
The demise of KB993 in May 18th 1945 was one of the first post World War 2 crashes on high ground, ten days after the end of hostilities.
There was no navigator on board because the crew should have been carrying out only circuits, a task which he would have had no part in.
Since this was taken in May 1999 a second smaller plaque was added with details of who had erected the memorial.
The crew of KB993 were all buried together in the Canadian section at Brookwood Military Cemetery about 30 miles south west of London, below are photographs of their graves taken in 2007.
