Finding Anderson's Birthday

So we have been trying to find out Keith Anderson's birthday for a long, long time because none of the records show his birthday, not even his grave. I tried the NSW births, deaths, and marriages records and it showed me nothing, so then i tried the WA births, deaths, and marriages records which revealed his birthplace as Perth WA, registration number 35021898. His fathers name was Sidney Jerrold Anderson and his mothers name was Constance Willdridge. The record only showed his birth year which was 1898. We rang the WA births, deaths, and marriages department (1300 305 021) and they helped us look up his records on a micro film. They rang back the next day to tell me that Keith Anderson was born on the 6th of July 1898. Now comes the AMAZING part which was that he was buried the same day as his birthday only 31 years later on the 6th of July 1929. He died very young, he was only 30yrs and 9 months, he died on the 12 April 1929!