The history of workplace safety law and action

I read the 10 or so pages on occupational health and safety at work history in Canada and the USA. This covered the development in the past 100 years or so. The book is:

Dyck, Dianne E. G. Occupational health & safety : theory, strategy & industry practice (Markham, ON: LexisNexis Canada, 2007).

The coverage included Germany in the early days and also covered a famous fire in the New York City's garment industry where 146 workers many of them young Italian and European Jewish women immigrants died in a fire. They could not escape because doors were locked. Also fire ladders and hoses could not reach the ninth floor so some jumped to their death rather than die in the fire