Mission accomplished! Delayed by six months... and through a helping hand from my cousin's friend Kevin - who I salute and thank wholeheartedly.
In Decade Milestone, I described how on the decade of my research I set myself the challenge to find the six missing great-great-great-grandmas to complete all six generations. I had found four, with only two remaining:
wife of Saverio Micallef and mother of Carmelo Micallef who was born abt 1854 in Rabat, Malta
wife of Fedele Galea and mother of Teresa Galea born abt 1862 in Rabat, Malta
Kevin helped me by looking up the birth records of Carmelo Micallef and Teresa Galea at the Mdina Parish Records, and surely enough, their mothers' names were listed there.
Now in Planning the Search for the Five , I had remarked:
INTERESTING POINT: Targets 4 and 5 would most probably have met each other, at least at their children's wedding. Questions come to mind: were they acquaintances before? were they always trying to keep up with each other? did they seek each other's company, or avoid it best they could? Sadly, no records would be able to cement these for us in their future...
Coincidentally, Targets 4 and 5 were both Camilleris. Were they even related? Cousins perhaps!
Only further research will unravel the mystery!
For now, I will cherish the complete six-generation tree, reproduced below: