Letters calling Rowland Williams ('Hwfa Môn') to the pastorates of the following churches: Abersoch, Bwlchtocyn and Capel Newydd, 1849; Bethel, Bangor, 1851, Bagillt and Flint, 1851, Great Jackson Street, Hulme, Manchester, 1852, Bryn Sion, Brymbo, 1855, Newmarket, 1858, Bethesda, 1862, Fetter Lane, London, 1867 (with a list of members), Amlwch, 1870, Hyde Park, U.S.A., 1871, Park Road, Liverpool, 1875, Pendref and Bryn Seion, Ruthin, 1877, Llanerchymedd and Hebron, Maenaddfwyn, 1881, and Llangollen and Trefor, 1887.