15,000 illegal adoptions in Ireland, mothers told babies had died
The number is an extrapolation so there's a bit of guesswork here, but there are 126 confirmed cases. You can probably guess that the Catholic Church was involved too, as they were probably involved in the vast majority of adoptions in Ireland through their "charities".
The 126 established cases were registered by St Patrick’s Guild adoption society between 1946 and 1969. The youngest person affected is 49 and the oldest is 72.