"Arthur Forbes Gordon Kilby was born at East Hayes, Cheltenham (Gloucestershire) on 3 February 1885. The only son of Sandford (sic) James Kilby, Bengal Police, and his wife Alice, he was educated at Bilton Grange near Rugby and Winchester College and entered Sandhurst after preparation at Frankfurt, Germany. He was commissioned into 1st Battalion South Staffs in August 1905. He was promoted to captain on 1 April 1910 when aged only 25. An accomplished linguist, he was fluent in Hungarian and German and when the war began was learning Spanish.
In 1919 a memorial was placed in St Nicholas’s Chapel, York Minster; it was inscribed with details of Kilby’s deeds and awards and contained a bust of him surmounted by the family coat-of-arms. It was an appropriate place for a memorial as he had made frequent visits to the cathedral in his study of architecture; his family has also provided 2 Lord Mayors of York.
Kilby’s body was eventually found on 19 February 1929 and interred at Arras Road Cemetery, Roclincourt, Plot III, Row N, Grave 27."
I haven't been able to find a picture of the memorial - if it has "the coat of arms" it would be very interesting to have one. The Kilby family of York have descendants in Australia.