"Y Ddolen, society newsletter Puget Sound Welsh Association, Seattle .june. 1999 " Math Eitemau Uwchlwytho gan Puget Sound Welsh Association
Y Ddolen, society newsletter Puget Sound Welsh Association, Seattle. march 1998 Math Eitemau Uwchlwytho gan Puget Sound Welsh Association
"Y Ddolen, society newsletter Puget Sound Welsh Association, Seattle. May 1996 " Math Eitemau Uwchlwytho gan Puget Sound Welsh Association
