Ottawa 1977: registration issues Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
Vancouver 1980: Registration cards Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
Vancouver 1980: Progress report Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
Vancouver 1980: fee structure Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
Vancouver 1980: Progress report Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
Vancouver 1980: Choir selection Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
Toronto 1982: Progress report Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
Portland,Ore, 1974: Regional Gymanfa Ganu Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
Portland,Ore, 1984: Summary report Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
Portland,Ore, 1984: Publicity Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
Portland,Ore, 1984: invitation Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
Milwaukee 1986: Non-Profit status Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
Milwaukee 1986: Invitation letter Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
Pittsburgh 1989: host hotel selections Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
Pittsburgh 1981: Invitation from WNGGA Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
Philadelphia 1976: Hymn Selection Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
