My Grandfather born Paul Henry Gershkowitz in Marsrajs, Latvia 26th December 1885. Married Alice Ivy Dand Newcastle 24th December 1917.
When he died (Oxford 1974) he was known as Peter Vivat - he changed his name around 1917 after being torpedoed & rescued in the North Sea in 1917. One daughter Ivy, one son Peter (my father).
Loads more information available email me if interested.