1 March 2009. Thelma had died in 2001. They had a daughter and a son, Amanda and David, and four granddaughters. Bibliography Simms was a prolific writer of over twenty books and numerous articles. (With Myles North) (New Naturalist series no.52) (New Naturalist series no.63) (New Naturalist series no.71) (New Naturalist series no.78) References 1921 births 2009 deaths Alumni of Merton College, Oxford British nature writers English ornithologists People educated at Latymer Upper School Recipients of the Distinguished Flying Cross (United Kingdom) Royal Air Force Volunteer Reserve personnel of World War II Wildlife sound recordists New Naturalist writers 20th-century British zoologists Royal Air Force officers