A copy of a lease of mines of coal and ironstone under the Gatewen Estate near Wrexham to the Broughton Coal Company, 29 September 1873; a copy of The County Herald 16 February 1894, containing a marked column on Connah's Quay drainage; a plan of a sewer; correspondence relating to the same subject, 1888-1894; and papers relating to the water companies of Wrexham, Ruabon, and Brymbo, 1871-1873.

The group contains the business records of Powell Brothers Limited, including account books, cash books, stock books, orders and letters.