I was at BRNC (Blake Division) in 1969
and I was in Blake from April 78 to December of that year.
My father was a 13 y/o entry in 1947, in Hawke. His entry was joined by the first of the 16 y/o entry, and 18 y/o entry was well, and I think not long after he entered BRNC they finished the 13 y/o entry for ever.