Typescript memorandum: ‘Memorandum of Coast Defence of Norfolk and Suffolk’, issued by 1st Mounted Division Troops, 14 Aug 1915; troops are arranged as Line of Observation and Resistance, Line of Support and Reserves; appendix lists include information on subdivision of geographical areas, anticipated reaction times, notes on railway platforms and sidings, bridges prepared for demolition, armoured train reaction time, transmission of reports; from papers, 1882-1953, of Col Frederick Weston Jarvis, Suffolk Yeomanry 1882-1923, and South African Constabulary 1902-1907.