from Ann Carson’s Borthwick website:- “John Sidney BORTHWICK Trooper 7946405 44th Royal Tank Regiment RAC who died on Wednesday 18 April 1945. Age 37. Additional Information: son of Alfred James Borthwick and Mary E Borthwick of Acton Middlesex. Cemetery: Groesbeek Memorial Gelderland, Netherlands Grave or Reference panel Number: Panel 1”180