Machen mineral leases, Ychwanegu i'r clipfwrdd AML 12/5 Ffeil 1902-1925 Rhan oTredegar Estate Records,
Machen iron and coal leases, Ychwanegu i'r clipfwrdd AML 10/4 Ffeil 1856-1925 (mainly 1919-1925) Rhan oTredegar Estate Records,
Machen quarry leases, Ychwanegu i'r clipfwrdd AML 12/11 Ffeil 1899-1924 Rhan oTredegar Estate Records,