There are many references to Henry Grant on the internet so I don't feel the need to write much about him here. 

According to Wikipedia, Henry Grant (1907–2004) was a British freelance photographer who was active around London from just after WWII. He retired professionally in 1980, and in 1986 his archive of 80,000 photographs was purchased by the London Museum. This is a page about him on the London Museum website Henry Grant

He visited the school on 12th May 1961 and I'm delighted to report the Board of Governors of the London Museum have granted our humble website a licence to display some of the photographs he took that day. Some are better than others but they are a superb addition to this site. I think the licence forbids me from making adjustments to the photos, so of course I haven't, and I won't.

If you can put names to the faces, please let me know.