Thomas Francis was a survivor convict of the Third Fleet, off the Admiral Barrington, arriving in October 1791, after 203 days at sea during which 36 convicts died.
Honorah Collins was a feisty Irish lass off the notorious Marquis Cornwallis, arriving in 1796.

They provided the fledgling colony with a number of children, thrice times thrice in grandchildren and countless thousands through the generations.
They married a few years after the birth of their first child and seemingly had a fiery marriage.  Some children are registered as Collins, some as Francis, although most married as Francis.  Their descendants are now spread out over every state of Australia and many overseas locations.

Thomas and Honorah became solid citizens supporting the establishment of schools and churches in the Hawkesbury region, he in particular seeming to be politically intent.

Thomas is reported to have supported the soldiers in the 1804 Vinegar Hill uprising near Castle Hill, most certainly against folk from Honorah's home country, which may have caused some angst between them and contributed to future events.

His signature appears on a letter stating that Macathur had not been appointed by the free settlers to represent them and in later years he placed a notice in the Sydney newspaper stating that Honorah had absented herself from the family home and that he would not be responsible for any debts she incurred in any establishment.

All in all, both Thomas and Honorah cemented themselves in early white Australian history and have been honoured by the establishment of the day by being buried in the Castlereagh Cemetery noted for the Macquarie Pioneers.

An extremely impressive and towering headstone was placed on Thomas's grave after his death in 1820 with a lengthy poetic epitaph.  It is unknown if Honorah had anything to do with this. 
It is likely, as Thomas seemed to be an enterprising chap, that he may have commissioned and paid for it prior to his death, as it is doubtful the 'establishment' would have contributed and the children did not seem to be well placed to have afforded the extravagance.

Honorah died in 1937 and although my memory tells me I have seen a headstone for her, behind and to the left of Thomas's resting place, there is nothing to indicate that now, and except for her Death Certificate and the Cemetery records stating she is buried there, nothing strongly indicates her exact resting place.  She may have been placed in with Thomas, but to date there is no solid evidence.

Penrith Council dictates the expectations and limitations of what can be done to these historic headstones, although all work is left to descendants to action, maintain and restore.

Stephen Hayes, a Francis descendant, has been doing all the phone and legwork to date and has a meeting onsite with the restoration mason from Rookwood Cemetery (Lidcombe) Friday 8th August to find out what can be done and the cost.

It is possible the headstone is too deteriorated for restoration, due to the soft sandstone of the Hawkesbury but at worst, we wish to purchase and erect a metal plaque bearing all the original wording, similar to that of the Rev. Fulton gravesite located on the opposite side of the cemetery.

A standard cost of this from Rookwood, which includes only 6 lines of text is $1200.  Due to this proposed one being necessarily bigger and with more text, it is more likely in the $2000 range.

All funds gathered from this Pozible Project (less cost of reward bath towels) will go straight to the restoration, if deemed worthwhile, and the plaque and hopefully there will not be too great a shortfall that the 5 people pushing this Project have to make up.

We are not expecting to get all the funds through the Pozible community, although if we did, that would be soooooooo GREAT!!!

addend: Sat Aug 9: The stone mason states the headstone and inscription are in good enough condition to be saved.  He even noted that the back bears the cut marks of tools of the day and should be standing proud to show off it's uniqueness.
Whoever chose this work 194 years ago,  intended it to last.
Quote will be about 3weeks.
Getting excited!!!

Money.
That is the ONLY obstacle at the moment.
We have already done the work with Council and the Restoration Mason.
EVERYTHING is done.
except
the paying for the actual plaque and restoring the headstone itself.
so
the only obstacle is $$$$$$$$$$$$