Penrhyn Estate Forestry Department Wages Book1967-1968 This includes details such as: total hours worked, rate per hour, overtime, gross wages, advances, employee’s national insurance and a cost analysis. The entries are for the same members of staff throughout the ledger, these being, J Bentley, D. Jones, Geo Edwards, Geo Sevage, E W Roberts, R O Hughes and A G Cowley. 23 March 1967- 28 March 1968