Consists of:
- Diary, 1837
- Railway account book, 1838-1840
- Account books (3) for 1842-1843, 1847-1850, 1862-1865
- Financial papers, Cyfarfod Misol, Arfon Presbytery, 1836-1874
- Expense accounts, Padarn railway, 1843
- List of valuation, Brynia stable, 1848
- Accounts, Daniel Roberts with William Thomas, blacksmith, 1862-1872
- Accounts, Daniel Roberts with William Owen, dealer, 1857-1864
- Legal particulars, Llanddeiniolen Chapel, c. 1863
- Agreement between Daniel Roberts and John Rowlands for letting Neuadd Llanfugail, 1870
- Indenture between Daniel Roberts and Messrs. R. Owen and Thomas Jones regarding tenancy of Neuadd Llanfugail, 1870