death dates - Information from Queensland BMD Historical Index
Elizabeth (1863 - ??) death certificate 1940/B47124 married surname Lang
Laura (1866 - ??) Death certificate 1952/B40642
Thomas Connah (1868 - ??) Death Certificate 1937/B34334
Sophia (1870 - ??) Death Certificate 1956/B15005 married surname Roberston
Llewellyn (1873 - ??) Death Certificate 1934/B25315
Stephen (1875 - ??) Death Certificate 1958/B25460
Mrs Thomas Blacket Stephens – ie Anne Connah died 12/07/1904 (1904/B004771)
the first 4 digits indicate year of certificate registration.
So events could have occurred in the last few days of December in the previous year.
In other words without looking at the original certificate to get a date & month it is safer to report 1940/B47124 as abt. 1940.