WNGGA 1993; Rules and Regulations Committee Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
Vancouver 1980: private dinner arrangements Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
San Francisco Regional 1976: General correspondence Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
San Jose 2001: Video recording [Correspondence] Math Eitemau Uwchlwytho gan The Welsh North American Association (WNAA)
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)
