Thanks Judith for those newspaper cuttings,
I have read through them carefully, hoping there would be a mention of the miners who were working with Joseph, and yes the witnesses names are mentioned. Sadly, none with the surname WILLIAMS. So perhaps he was not yet known to the family, or perhaps he was on a different shift or at a different mine with the AA Co, or perhaps not even with the AA Co.
I am concerned that the NSW BDM's register of the 1877 marriage may have the usual elusive blanks, as it is NOT registered in any of the Sydney BDM districts. I am concerned that NSW BDM may have not ever reconciled their summary returns with the original registers, or perhaps it was a registry marriage, with summary info only.
Until we have first hand info supplied by David WILLIAMS about himself it will be difficult to establish his parentage. In my experience of that era, most of the NSW births registered have the father as informant rather than the mother, which is why earlier I suggested obtaining official transcription of the baby our OP names as James Henry. Without that info it may be very difficult to find his death.
Suzansarg, here's a (now lengthy) thread I did up some time ago re the elusive blanks on many NSW BDM marriage certs :
http://www.rootschat.com/forum/index.php?topic=546609.0 NSW BDM online marriage index
# 4990/1877 registered Wallsend
WILLIAMS David and HILL Lavilla Jane
NSW BDM online birth index
# 20916/1880 registered Wallsend
WILLIAMS James Henry
parents as David and Mary Jane (JM gently mentions "Mary Jane v Lavilla Jane v Lavilia Jane v Lavillia Jane - these registrations were all in 'long hand'. Afterall, the typewriter did not arrive at NSW BDM until after WWI and the indexes themselves were not compiled until the 1930s
)
Some thoughts: To try to find possible decade/year of the death of David WILLIAMS
When Lavillia's death cert is available, it should show if she was a widow at the time of her death.
When Lavillia's children married, any (particularly the girls) who were not yet 21 when marrying would have required parental consent to marry. The name and relationship of the person giving consent should be recorded on even the summary info forwarded to NSWBDM and thus be on the register.
Depending on the year for those marriages, it is even possible that NSW clergy would note 'dec' or deceased or perhaps the symbol † against the details of the parents on those marriage certs, particularly for marriages after around 1899.
JM