I have only just read that he died on 27 august 2023 aged 87.Like me he lived in Thame , Oxfordshire .We used to travel together to raleigh in essex where the FRA office was, The home of Geofrrey & June Pearl. Also went to many of the FRA demos in the late 1960s . I lost contact with most of the people from those years .suspect most are dead now. I do believe Martin Rosen is still alive .