Minutes, 1882-1886, of the bi-monthly meetings of the Sunday Schools in the Clynnog district, kept by Griffith Lewis, Pen-y-groes, with notes and statistics; letters by John Owen Jones, Llanberis, 1885, W. W. Jones, Clynnog, 1886, and by G. Ceidiog Roberts, [?1895]; statistics of the district in April 1854 by Ebenezer Thomas ('Eben Fardd'), and a report on the Clynnog district Sunday Schools, 1857.