2000, Welsh Association of the Pacific Northwest Math Eitemau Uwchlwytho gan Puget Sound Welsh Association
2000, Welsh Association of the Pacific Northwest Math Eitemau Uwchlwytho gan Puget Sound Welsh Association
2001 Pacific Northwest Welsh Weekend: publicity Math Eitemau Uwchlwytho gan Puget Sound Welsh Association
2001 Pacific Northwest Welsh Weekend handbook Math Eitemau Uwchlwytho gan Puget Sound Welsh Association
2000 Pacific Northwest Welsh Weekend handbook Math Eitemau Uwchlwytho gan Puget Sound Welsh Association
1999 Pacific Northwest Welsh Weekend: planning Math Eitemau Uwchlwytho gan Puget Sound Welsh Association
1999 Pacific Northwest Welsh Weekend: publicity Math Eitemau Uwchlwytho gan Puget Sound Welsh Association
1999 Pacific Northwest Welsh Weekend: handbook Math Eitemau Uwchlwytho gan Puget Sound Welsh Association
Y Ddolen, society newsletter Puget Sound Welsh Association, Seattle. november. 1996 Math Eitemau Uwchlwytho gan Puget Sound Welsh Association
St. David's Day Program, Seattle, 2000 Math Eitemau Uwchlwytho gan Puget Sound Welsh Association
