Welsh Drama Company: Seasons Publicity, Ychwanegu i'r clipfwrdd WDC/SP Is-is-fonds 1973-8. Rhan oWelsh National Opera Records
Welsh Drama Company: Photographs of Performances and Performers. Ychwanegu i'r clipfwrdd WDC/PP Is-is-fonds Rhan oWelsh National Opera Records
Welsh Drama Company Files. Ychwanegu i'r clipfwrdd WDC Is-is-fonds Rhan oWelsh National Opera Records
Seasons Publicity, Ychwanegu i'r clipfwrdd SP Is-is-fonds 1944-82. Rhan oWelsh National Opera Records
Seasons Correspondence, Ychwanegu i'r clipfwrdd SC Is-is-fonds 1949-83. Rhan oWelsh National Opera Records
Miscellaneous Printed Items. Ychwanegu i'r clipfwrdd MPI Is-is-fonds Rhan oWelsh National Opera Records
M. E. Moreland (Yellow Copies), Ychwanegu i'r clipfwrdd MEM Is-is-fonds 1970-7. Rhan oWelsh National Opera Records
Administrative Files, Ychwanegu i'r clipfwrdd AF Is-is-fonds 1948-1983. Rhan oWelsh National Opera Records