i. Survey made by William Williams of Llandegai, 1777-1778. Arranged in colums, names of parishes, names of farms, and respective acreages.
ii. Statute measure of Gwaenynog Demesne as surveyed by William Williams in March 1782
iii. Rental of the Rev. Doctor Myddleton, 1804
The Dr Myddleton referred to was the rector of Rotherhide and a member of the collateral branch of the Myddletons of Gwaenynog. He became landlord of the Gwaenynog estate in 1797.
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Another catalogue description can be found here https://archiveshub.jisc.ac.uk/data/gb222-bmssmyd
