- NLW MS 18692B.
- Ffeil
Typescript and manuscript. Welsh. Formerly J. Seymour Rees MS 72.
Typescript and manuscript. Welsh. Formerly J. Seymour Rees MS 72.
Caniadau Sion ... Yr ail argraffiad. Gan John Thomas, Rhaeadr Gwy (Trefecca 1788).
Typescript copy. Hefyd rhai emynau ychwanegol a llyfryddiaeth. Welsh. Formerly J. Seymour Rees MS 75.
'Hymns ... by Richard Davis, ... Eighth Edition ...'. London. 1833.
Typescript copy. With biographical notes appended. Welsh, English. Formerly J. Seymour Rees MS 77.
Hymns by Jenkin Jones (published 1768) and David Owen, 'Brutus'.
Typescript copies from printed sources. Welsh. Formerly J. Seymour Rees MS 80.
Emynau, pregethau, traethodau etc,
Welsh. Formerly J. Seymour Rees MS 46.
Short stories (one in English). Typescript.
English, Welsh. Formerly J. Seymour Rees MSS 104-107.
'Emynwyr ac emynyddiaeth yr hen ymneilltuwyr Cymreig hyd at 1811'. Teipysgrif a llawysgrif.
Welsh. Formerly J. Seymour Rees MS 132.
Welsh. Formerly J. Seymour Rees MS 135.
'John Thomas, 'Pencerdd Gwalia': ei fywyd a'i waith'. Typescript.
Welsh. Formerly J. Seymour Rees MS 137.
English. Formerly J. Seymour Rees MS 157.
Defnyddiau ar hanes a gwaith y Parchedig William Edwards, o'r Groes Wen.
Welsh. Formerly J. Seymour Rees MS 159.
'Ysgrifau ar Emynyddiaeth'. Casgliad o ysgrifau gan wahanol awduron,
Welsh. Formerly J. Seymour Rees MS 162.
Ysgrifau ar Emynyddiaeth Gymraeg'. Ysgrifau gan wahanol awduron.
Formerly J. Seymour Rees MS 163.
Casgliad o emynau Cymraeg a chyfieithiadau gan Elfed,
Welsh. Formerly J. Seymour Rees MS 164.
English, Welsh. Formerly J. Seymour Rees MSS 178-79.
Welsh. Formerly J. Seymour Rees MS 181.
'Llwybrau Bendith: Rhannau o'r Ysgrythur Sanctaidd ar Gyfer Pob Sul o'r Flwyddyn ...',
Welsh. Formerly J. Seymour Rees MS 199.
Mynegai i'r Beirniad (gol. J. Morris Jones),
Welsh. Formerly J. Seymour Rees MS 202.
'Beirdd Ceredigion', 'Ysgrifau diddorol yn Cymru' (gol. O. M. Edwards), 'Llafur Llenyddol Syr Owen Morgan Edwards', 'Rhestr o enwau Cymraeg ar flodau'. (J. S. Rees a Mrs Annie Seymour Rees). Welsh. Formerly J. Seymour Rees MSS 207-211.