- Colorado, enacting jurisdiction.1
- Colorado. Industrial Commission, author.1
- Copeland, Norman, author1
- Darnall General Hospital (Danville, Ky.), author, issuing body.1
- Dragstedt, Lester R. (Lester Reynold), 1893-1975, author1
- Eichna, Ludwig W. (Ludwig Waldemar), 1908- author1
- Farmer, C. J., author1
- Field, Oliver Peter, 1897-1953, author1
- Florida, enacting jurisdiction.1
- Folsome, Clair E. (Clair Edwin), 1903-1956, author1
- Georgia. Department of Public Health. Industrial Hygiene Service, author.1
- Greenburg, Leonard, 1892-1991, author1
- Hatch, Theodore F., author1
- Heindel, Richard H. (Richard Heathcote), 1912-1979, author1
- Horvath, Steven M., author1
- Idaho Historical Records Survey Project, author.1
- Indiana State Board of Health, author.1
- Jones, Ogden S. (Ogden Sherman), 1891- author1
- Kafka, M. Martyn (Maximilian Martyn), 1900- author1
- Kansas Historical Records Survey, author.1