Hi Diana - Margaret has asked me to let you know that she has been in touch with the sextant at Sala Street cemetery. According to their records there are two people of the surname WALLACE who are buried in the Soldiers’ Section of that cemetery. 1. Robert Lindsay WALLACE, who died in 2000, aged 93. 2.James Ian Bruce WALLACE. Died Rotorua 21.4.1983, aged 63. So neither of these sound like your grandfather. The phone number for the Sala Street Cemetery office is (07) 349 1899 if you want to investigate further. All the best, Jamie Mackay