Since so many people asked where to find Harada Roshi and Mumon Roshi on this memorial foto, here now you can see them circled :)

This memorial foto was taken on the 10th of October 1966 after a one week sesshin in honour of 1100 years after Rinzai Zenji´s death. 
1100 monks, nuns, priest participated in this sesshin in Tofukuji in Kyoto.