Pitwork in south-west Lancashire resulted in the area around Wigan having the highest rates of female employment in the country in the 19th century.
[5] On 4 July 1838, a flash flood at the Huskar Pit near Silkstone in Yorkshire caused the deaths of 26 children aged from seven to 17 who were drowned while trying to escape.
Children as young as five or six worked as trappers opening and closing ventilation doors before becoming hurriers, pushing tubs of coal to the shaft bottom.
[11] Pit-brow women working outside in the cold and dirt developed a distinctive "uniform", they wore clogs, trousers covered with a skirt and apron, old flannel jackets or shawls and headscarfs to protect their hair from coal dust.
[12] The women's unconventional but practical dress drew them to the attention of the public and carte de visite and cabinet card portraits and later postcards of them in working clothes were produced commercially and sold to visitors as novelties.
Munby visited the Wigan area many times over many years, interviewing working-class women and recording in his diaries what they had to say about their jobs, pay and living conditions.