- Blychau 47-50.
- Cyfres
- 1987-1993.
Rhan oPapurau Ieuan Wyn Jones
Rhan oPapurau Ieuan Wyn Jones
Rhan oPapurau Ieuan Wyn Jones
Rhan oPapurau Ieuan Wyn Jones
Rhan oPapurau Ieuan Wyn Jones
Rhan oPapurau Ieuan Wyn Jones
Rhan oPapurau Ieuan Wyn Jones
Rhan oPapurau Ieuan Wyn Jones
Rhan oPapurau Ieuan Wyn Jones
Rhan oPapurau Ieuan Wyn Jones
Rhan oPapurau Ieuan Wyn Jones
Rhan oPapurau Ieuan Wyn Jones
Rhan oPapurau Ieuan Wyn Jones
Rhan oPapurau Ieuan Wyn Jones
Rhan oPapurau Ieuan Wyn Jones
Rhan oPapurau Ieuan Wyn Jones
Emynau [gweler hefyd 147 ac 193],
Rhan oWelsh Baseball Archive,
Administrative papers relating to the referees society, including minutes, exam papers, lists of affiliated members, agendas, balance sheets, discipline forms, written statements and correspondence, constitution and rules, correspondence, registration forms and honours lists.
Rhan oWelsh Baseball Archive,