In Memoriam This area contains brief obituaries of SPA members who have passed on. Prof. Heather Couper CBE (1949–2020) Leslie Green (1931-2018) E J (Jim) Hysom (1933–2017) Dr Ron Maddison (1935–2019) Paul Sutherland (1952-2022) Dr Helen Walker, (1953-2017) (link to 128 kb PDF)