"Photographs of the officials at (1) the afternoon Gymanfa Session of the 1994 National Gymanfa Ganu, Bellevue, Washington: Alan Upshall ( Chair), Beverly Ratajak (accompanist) Tim, Dyck and Mary Morris Mergenthal, directors. and (2) the evening session of the Welsh National Gymanfa Ganu, Bellevue, WA 1994. Tim Dyck, Bob Matthews, D. Eifion Thomas and Alan S. Rees.
The Welsh National Gymanfa Ganu was hosted by the Puget Sound Welsh Association under the auspices of the Welsh National Gymanfa Ganu Association.
This is file number PSW00145 in the Welsh Heritage Center archive (see link)."