I had seen that death ref for 1937 but wanted to know if you knew ! Your best bet would be to see all the details on the death certificate. You should then be able to find out where he was born and his mothers maiden name. I don't know if you know..but UK BMD certs can be ordered in Australia. If you do a Google searchjust type in Joy Murrin
It's actually Joy Murrin Family History Services. Just supply the death ref details to order a 'full transcript' and you should have copy of death certificate in about two weeks. If you wish to contact me I can send the actual census records for Lavinia in 1871 + others previously mentioned. If not, and you have access to Ancestry,I can send the census ref's instead for you to find yourself.