Hi Caroline, my family name is Gilmour, born 1944, and lived at a house on the farm of St Charles Institution.
My father worked on this farm with Peter Cameron under direction of Father Mc Kaysic( spelling dubious).
On many occasions I played on the front lawn with the inmates of st Charles, they were a mixture of unfortunate, homeless, school dodgers, young petty thieves, downes syndrome children, they were NOT mentally retarded,
The inmates worked on the farm and were paid by my father, Richard Gilmour, three cigarettes or one bar of toffee a day, all of which was kept in our house.
Yes butcher came every Sunday to kill three sheep at farm slaughter house, this along with churns of milk went to institution, skimmed milk Returned for the pigs. And butter for institution.
I remember the name Mr Horsefield, there was a very large walled vege garden to back of house.
As for siren, there wasn't one at St Charles that was the penitentiary.
People did run away from the institution, my father was the person who would go looking for them, no police involved in my recollection, the penalty for running away was to have your head shaved.
they were very unfortunate kids, due to circumstances outwith their control, we had great fun times together, I can tell you much much more, Bill.