There is an excellent article about a mining disaster in Northumberland 150 years ago at the link below.
Northumberland Mining Disaster
Inscribed on the obelisk in Earsdon churchyard, near Whitley Bay, are the names of the 204 men
and boys who died in the Hartley Colliery disaster on 16 January 1862.
The youngest was 10, the eldest 71, and the same surnames are repeated time
and time again. One family, the Liddle's, lost nine members.
Such was the impact of the disaster that it resulted in a change of law,
spelling the end of one-shaft mines, and the beginning of more support for
The article will be of interest to anyone with an interest in the history of mining or who have mine workers in their family background.