LefelItemDisgrifiadBlack and white photographs relating to St. Gwstenin's Church, Llangwstenin (Vol. 1): interior views.ArchifCAI - Caernarvonshire Inventories ArchiveDyddiadRhif Archif6375480
LefelItemDisgrifiadFile of mss texts and notes relating to the entry for Llanllyfni: Volume 2.ArchifCAI - Caernarvonshire Inventories ArchiveDyddiadRhif Archif6377888
LefelItemDisgrifiadBlack and white photographs relating to sites in Llanllyfni (Vol. 2): exterior and interior views (often in multiple copies).ArchifCAI - Caernarvonshire Inventories ArchiveDyddiadRhif Archif6375509