Lutton Marsh volunteer is commended for maintaining Holbeach Royal Observer Corps station in Holbeach A volunteer has been commended for his service to maintaining a military post. Dave Hagen (74), of Lutton Marsh, has been giving up his time to maintain the Dave Hagen has received a commendation (45712282) The monitoring station is a cause close to Mr Hagenâs heart as he had served in the Royal Observer Corps. Mr Hagen said: âI am over the moon to have received the commendation. I canât believe it. âI am just doing something that I really enjoy.â The Royal Observer Corps had played an important part in the Second World War by spotting enemy aircraft.