1959 – Excessive natural heat (US Public Health Service code E931) — 267
–267 USPHS. Vital Statistics of the US 1959, Vol. II, Mortality Statistics. P. 120.
Source
United States Public Health Service, Department of Health, Education, and Welfare. Vital Statistics of the United States 1959, Volume II, Mortality Statistics for the United States and Each State. Washington, GPO, no date. Accessed 1-12-2023 at: http://www.cdc.gov/nchs/data/vsus/VSUS_1959_2.pdf