Thank you all, greatly appreciated - she's now 59 and the baby is almost 2 years old (9 more minutes to go in 2X mode). I am now at 90 people max and I just reached level 3 fertility - waiting for one of my villagers to die (What a mean and heartless thing to say!) so that I can get my 'golden child' and resolve the rest of the 16 puzzles - currently solved 12 out of 16.

All that is left is medicine at 250,000 tech points - coming up by tomorrow evening as I am at about 46,000 at this time of posting.
