Grimsby Radio College was part of the general technical college, and from information received was in existance from at least 1963 until 1971.
The college provided its own accomodation, and a Commander Shiels was in charge. The head of the marine section being Captain (Honorary) Keene. https://www.facebook.com/groups/pgm.grimsby
The above photograph is from 1965/6.
The students even had to march from the accommodation to the college.
Thanks must go to Dave Pawson for the above photographs and brief history of the college.