Deeds, documents etc., mainly relating to the Galltyllan Estate, co. Mont, Ychwanegu i'r clipfwrdd 1-105. Cyfres 1674-1919. Rhan oBonsall family papers,
1991 Donation, Ychwanegu i'r clipfwrdd 111-124. Cyfres 1790-[early 1900s]. Rhan oBonsall family papers,