Ref Russian submarine “Kursk” and the British Royal Navy.  The Commander of Underwater Rescue vehicles for the RN was a Commander Tim Chittenden

“Arthur DeBohun Chittenden said his ancestors arrived in England with William the Conqueror - the heavily armed and armoured DeBohun on a giant war-horse who was killed with an axe blow in a Scottish Battle by either Robert the Bruce or William Wallace - was a direct ancestor

Roll of Honour 1914 - 1918.   Waterloo Station.  The London & South Western Railway. Plaque dedicated to those Company employees who gave their lives in the Great War. -  W. C. Chittenden.