"Annotated planning notes for Gymanfa Ganu , Seattle 1987. This was to be the first Gymanfa held in the area for many years and was the first to be planned by the Seattle Welsh Choir. The chairman of the planning committee was Col. Bob Matthews (ret). The singing can be heard at psw00279 in his data base.
This item is in file number psw00285 in the Welsh Heritage Center Archive ( See below)"