How does the above illustration support Harris's testimony about the work experience for women in mines?

Harris's testimony about the work experience for women in mines is horrible. These women work in the mines about 12 hours a day which is very high for a women.

Explanation:

Betty Harris is a woman lived in England. In 1827, he join the job of coal pit in the mine after marriage in the age of 23 years. He worked in the mines 12 hours a day which impose a bad impact on her marriage life.