DSC Group of Medals WW2

A fine group of WW2 Medals issue to a Temporary Lieutenant John Robertson Armstrong R.N.V.R .Medals are Distinguished Service Cross ,39/45 Star,Atlantic Star,Defence Medal,War Medal and also a set of miniture medals these have a France/Germany Bar on the Atlantic Star and Oak Leafs on the War Medal.He got the Mention in Dispatches (Oak Leafs) for Operation Neptune clearing mines around Normandy Beeches before D Day ,the DSC mine sweeping on ML450 (Motor Launch) on the River Seine to Rouen " from the national archives -- For outstanding skill and devotion to duty during minesweeping operations in the opening of the Channel Ports.
As Flotilla divisional leader,he was in charge of a very successful operations at Boulogne and Calais and part in the sweeping of Dieppe.
We also have a local newspaper cutting confriming his name and where he came from as follows Lt J Armstrong son of Mr J C Armstrong The Croft Lyndurst Low Fell Gateshead Newcastle Enlisted 1939 commission 1941 went to Newcastle Royal Grammer School and was a young golfer at Ravensworth Golf Club.
More research needs to be done on this man.